Conductivity Probe (DPH1-S)

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The Conductivity Probe (DPH1-S) is a replacement combined pH/ORP electrode specifically designed for DLAB DPH1 pen-type pH/ORP meter and DPH1+ Bluetooth pen meter . The probe features a glass pH sensing bulb for precise pH measurement, an integrated thermistor for automatic temperature compensation (ATC), and a polycarbonate body that is resistant to many aqueous solutions but should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone .

The Conductivity Probe (DPH1-S) enables the DPH1 and DPH1+ meters to measure pH (-2.00 to 16.00 pH, accuracy ±0.01 pH) , ORP (-1000.0 to +1000.0 mV, accuracy ±0.1 percent of full scale ±1 digit), and temperature (0 to 60 degrees Celsius, accuracy ±0.2 degrees Celsius) . When used with the compatible meters, the probe supports 1 to 3 point automatic pH calibration with buffer recognition and is compatible with CH, USA, and NIST standard buffer solutions for flexible calibration options . The probe shares the meter’s IP67 dustproof and waterproof rating for reliable operation in harsh field environments .

The probe features a removable protective cover that prevents damage to the glass pH sensing bulb and facilitates easy cleaning . The probe is pre-installed in new DPH1 and DPH1+ meter kits and is available as a replacement part to extend instrument service life—electrode replacement rather than complete meter replacement . Replacement is straightforward for trained laboratory personnel, and the probe is a consumable item not covered under the instrument warranty .

For the clinical laboratory scientist, dialysis technician, and water quality specialist, the Conductivity Probe (DPH1-S) ensures continued, accurate pH and ORP monitoring of purified water systems, dialysis fluids, biological fluids, and pharmaceutical process water—critical parameters for ensuring patient safety during renal replacement therapy, diagnosing acid-base disorders, and supporting drug manufacturing.

For the patient, reliable replacement parts ensure continuous water quality monitoring in dialysis and pharmaceutical applications, preventing gaps in quality surveillance that could compromise patient safety. Accurate pH measurement of biological fluids supports early detection of metabolic disturbances, acid-base imbalances, and renal dysfunction, enabling timely clinical intervention.

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Categories: LABORATORY EQUIPMENT AND SUPPLIES, Lab Consumables Tags: Combination Electrode, Conductivity Probe (DPH1-S), Conductivity Probe (DPH1-S) Replacement Electrode, DLAB DPH1-S, ORP Measuring Electrode, pH/ORP Pen Meter Probe, pH/Temperature Probe, Replacement pH Probe, Water Quality Testing Accessory

Description

Conductivity Probe (DPH1-S)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Replacement pH Electrode for Pen-Based Water Quality Analyzers

Primary Use: Provides a replacement combined pH electrode specifically designed for DLAB DPH1 and DPH1+ pen meters, integrating pH sensing, reference, and automatic temperature compensation (ATC) into a single replaceable probe . The polycarbonate electrode body is designed for general aqueous solutions but should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone.
How it helps: For the clinical laboratory scientist and water quality specialist, the DPH1-S allows continued use of the DPH1 and DPH1+ pen meters by replacing only the sensing electrode rather than the entire instrument—reducing equipment costs and minimizing downtime for critical water quality monitoring. For the patient, reliable replacement parts ensure continuous monitoring of dialysis water and purified water systems, preventing gaps in water quality surveillance that could compromise patient safety. The 1-year manufacturer warranty covers the instrument but the electrode is considered a consumable, with an expected lifespan dependent on usage and care .

2. pH Measurement for Dialysis Water and Biological Fluid Testing

Primary Use: Measures pH across the range of -2.00 to 16.00 pH with accuracy of ±0.01 pH ±1 digit and resolution of 0.1 or 0.01, supporting pH assessment of purified water, dialysis fluids, and biological specimens when used with compatible pen meters .
How it helps: For dialysis technicians and clinical laboratory scientists, the DPH1-S sensor enables rapid, on-site pH verification of water used in renal replacement therapy and biological fluid analysis. The 1 to 3-point automatic calibration with buffer recognition (compatible with CH, USA, and NIST standard buffer solutions) ensures measurement reliability across different sample types . For the patient, accurate pH measurement of dialysis water helps prevent adverse events related to improper water composition, while pH testing of biological fluids supports diagnosis of metabolic acidosis, alkalosis, diabetic ketoacidosis, and renal tubular disorders.

3. Automatic Temperature Compensation for Accurate Readings

Primary Use: Integrated temperature sensor provides automatic temperature compensation (ATC) across 0 to 60 degrees Celsius, ensuring pH measurements are automatically corrected to standard reference temperatures.
How it helps: For the clinical laboratory scientist and water quality specialist, the built-in temperature sensor eliminates the need for a separate temperature probe, while automatic temperature compensation ensures that pH readings are automatically corrected to standard reference temperatures, eliminating calculation errors and improving measurement accuracy. For the patient, accurate temperature-compensated measurements ensure that water quality data used for clinical decision-making is reliable and consistent across varying sample temperatures.

4. ORP Measurement Capability with Same Electrode

Primary Use: The DPH1-S electrode also supports oxidation-reduction potential (ORP) measurement from -1000.0 to +1000.0 mV with accuracy of ±0.1 percent of full scale ±1 digit when used with the DPH1 or DPH1+ pen meters .
How it helps: For infection control officers and dialysis technicians, ORP measurement using the DPH1-S enables rapid, on-site verification of disinfection efficacy in purified water loops, dialysis water systems, and hospital plumbing—directly confirming that oxidizing agents such as chlorine are present at effective concentrations for microbial control. The 0.1 mV selectable resolution allows for precise measurement across various water quality applications . For the patient, accurate ORP monitoring ensures that water used in renal replacement therapy meets critical safety standards for dialysis treatment.

5. Compatibility with DPH1 and DPH1+ Meter Systems

Primary Use: Designed as the dedicated replacement electrode for DLAB DPH1 pen-type pH/ORP meter and DPH1+ Bluetooth pen meter, ensuring proper fit and electrical compatibility for pH, ORP, and temperature measurement .
How it helps: For the laboratory manager and equipment coordinator, using the manufacturer-specified replacement probe ensures optimal instrument performance, calibration accuracy, and measurement reliability. The DPH1-S is pre-installed in new DPH1 and DPH1+ meter kits and is available separately for replacement needs. The electrode features a removable protective cover that prevents damage to the glass bulb and facilitates cleaning. For the patient, properly compatible replacement parts ensure that water quality monitoring equipment continues to function within manufacturer specifications, maintaining the integrity of quality assurance programs.

SECONDARY & SUPPORTIVE USES

1. Purified Water System Verification: Used with DPH1 and DPH1+ meters to verify pH of purified water, water-for-injection (WFI), and distilled water in hospital and laboratory water treatment systems.

2. Pharmaceutical Process Water Testing: Supports pH measurement for validation and routine monitoring of pharmaceutical water systems, with probe replacement ensuring continued compliance.

3. Dialysis Water Quality Verification: Used with DPH1 and DPH1+ meters to test pH of dialysis water and dialysate solutions, with regular probe replacement maintaining measurement accuracy.

4. Cooling Tower and Boiler Water Testing: Measures pH in cooling towers, boiler feed water, and steam generation systems to assess corrosion potential and treatment efficacy.

5. Environmental and Wastewater Monitoring: Enables pH measurement of wastewater discharge, surface water, and groundwater in hospital environmental monitoring programs.

6. Reagent and Buffer Quality Control: Verifies pH of laboratory reagents, buffers, and preparation solutions to ensure consistent experimental conditions.

7. Aquaculture and Zebrafish Facility Management: Used to check pH levels in aquatic animal housing facilities within research institutions.

8. Hydroponic and Agricultural Nutrient Management: Monitors pH of nutrient solutions in controlled environment agriculture and research plant growth facilities.

9. Electrode Replacement for Extended Instrument Life: Serves as the replacement component to extend the service life of DPH1 and DPH1+ meters when the original probe reaches end of life .

10. ORP Measurement for Disinfection Monitoring: Enables oxidation-reduction potential measurement for assessing disinfection efficacy in water treatment systems .

11. Removable Protective Cover: Features a removable electrode bulb protective cover that prevents damage to the glass pH sensing bulb and facilitates easy cleaning .

12. Calibration Support: Compatible with CH, USA, and NIST standard buffer solutions for flexible calibration options corresponding to regional requirements .

13. IP67-Compatible Probe: The probe shares the meter’s IP67 dustproof and waterproof rating, suitable for use in harsh field environments .

14. Combined Electrode Design: Combination electrode design allows replacement as needed to meet different testing requirements.

15. Storage Solution Requirement: Requires storage in 3 mol KCl pH/ORP electrode soaking solution to prevent the pH sensing bulb from drying out and to maintain optimal performance .

16. Polycarbonate Electrode Body: The polycarbonate body is resistant to many aqueous solutions but should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone .

17. Multi-Parameter Compatibility: Compatible with both pH and ORP measurement on the DPH1 series meters, allowing a single electrode to support multiple water quality parameters.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A replacement combined pH/ORP electrode for DLAB DPH1 and DPH1+ pen meters, integrating pH sensing (glass bulb), reference, and temperature sensing (thermistor) into a single replaceable probe for water quality analysis .
Designation: DPH1-S Conductivity Probe, DPH1-S Replacement Electrode, pH/ORP Pen Meter Probe, DLAB DPH1-S, Combination Electrode.
Key Components:
- pH Sensing Element: Glass bulb for pH measurement .
- Temperature Sensor: Integrated thermistor for automatic temperature compensation .
- Probe Body: Polycarbonate combined probe design .
- Connection: Compatible with DPH1 and DPH1+ meter housing .
- Protective Cover: Removable electrode bulb protective cover .
- Materials: Glass pH bulb, polycarbonate body, thermistor sensor .

2. TECHNICAL & PERFORMANCE PROPERTIES

Compatible Meters: DPH1 Pen-Type pH/ORP Meter, DPH1+ Bluetooth Pen Meter .
pH Measurement Range (with compatible meter): -2.00 to 16.00 pH .
pH Resolution (with compatible meter): 0.1 or 0.01 (selectable) .
pH Accuracy (with compatible meter): ±0.01 pH ±1 digit .
pH Calibration (with compatible meter): 1 to 3 points automatic calibration; automatic buffer recognition; supports CH, USA, and NIST standard buffer solutions .
pH Automatic Temperature Compensation Range: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) .
ORP Measurement Range (with compatible meter): -1000.0 to +1000.0 millivolts .
ORP Resolution (with compatible meter): 0.1 or 1 (selectable) .
ORP Accuracy (with compatible meter): ±0.1 percent of full scale ±1 digit .
Temperature Measurement Range (with compatible meter): 0.0 to 60.0 degrees Celsius (32.0 to 140.0 degrees Fahrenheit) .
Temperature Accuracy (with compatible meter): ±0.2 degrees Celsius .
Probe Type: Combined electrode design; replaceable .
Sensing Material: Glass (pH bulb), Thermistor (temperature) .
Body Material: Polycarbonate .
Protection Class (with meter): IP67 (dustproof and waterproof) .
Calibration Compatibility: Supports CH, USA, and NIST standard buffer solutions .
Storage Requirement: 3 mol KCl pH/ORP electrode soaking solution recommended for pH bulb hydration .
Replacement Purpose: Extends instrument service life by allowing electrode replacement rather than complete meter replacement .
Chemical Compatibility: The polycarbonate electrode body should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Pen-style combined probe designed to fit DPH1 and DPH1+ meter housing; sealed, maintenance-free design .
Sensing Technology: Glass pH bulb for hydrogen ion activity; thermistor for automatic temperature compensation; reference system for stable potential .
Removable Protective Cover: Features a removable electrode bulb protective cover that prevents damage to the glass pH sensing bulb and facilitates easy cleaning before and after use .
Installation: User-replaceable; installs directly into DPH1 and DPH1+ meter body.
Compatibility: Specifically designed for DLAB DPH1 and DPH1+ pen meters; not compatible with other meters .
Maintenance: Requires no electrolyte refilling; clean with distilled water after each use; keep pH bulb moist using 3 mol KCl storage solution; never store dry .
Storage: Store electrode with protective cap in place; keep pH sensing bulb moist using 3 mol KCl storage solution to prevent drying; never store dry .
Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use.
Visual Confirmation: Removable protective cover allows visual inspection of glass bulb condition and facilitates cleaning.
Durability: Designed for harsh field environments with IP67 rating when installed on meter .
Calibration: Performed through the DPH1 and DPH1+ meters using standard solutions; probe does not require separate calibration.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: Accessory and replacement part for in vitro diagnostic preparatory equipment (DPH1 and DPH1+ meters).
Safety Certifications: Manufactured under ISO 9001:2015 quality management system; CE compliant .
Protection Class (with meter): IP67 (dustproof and waterproof against temporary immersion up to 1 meter for 30 minutes) .
Material Safety: Glass pH bulb (fragile, handle with care); polycarbonate plastic body (avoid organic solvents); RoHS compliant materials.
Electrical Safety: Low-voltage passive component; safe for use with DPH1 and DPH1+ meters (four AAA batteries, 1.5 volts each).
Replacement Indicator: Replace probe when readings become unstable, calibration fails repeatedly, glass bulb is cracked, or physical damage is visible.
Consumable Status: The electrode is considered a consumable item and is not covered under the instrument warranty .

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store probe with protective cap in place; keep pH sensing bulb moist using 3 mol KCl pH/ORP electrode soaking solution; never store dry; avoid extreme temperatures and direct sunlight .
Cleaning: Rinse with distilled water after each use; for stubborn residues, use mild detergent and soft brush, taking care not to damage the glass pH bulb; do not scrub glass bulb with abrasive materials. The removable protective cover facilitates cleaning of the electrode bulb .
Inspection: Inspect the glass pH bulb for cracks or damage before each use; inspect the probe body for any visible damage; verify that the glass bulb is free of cracks or scratches.
Installation: Insert probe into DPH1 or DPH1+ meter body securely; ensure proper electrical contact; follow meter instructions for probe replacement .
Calibration: After probe replacement, calibrate the DPH1 or DPH1+ meter using appropriate calibration standards before use—pH buffers (pH 4.00 and pH 6.86 or 7.00) as appropriate for the expected sample pH range .
Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use .
Handling: Handle with care to prevent damage to the glass pH bulb; do not touch glass bulb with fingers, as oils can affect measurement accuracy; do not bend or apply excessive force to the probe.
Chemical Compatibility: Avoid using the electrode in organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, or methyl ethyl ketone, which may damage the polycarbonate plastic body .
Replacement Frequency: Replace probe when meter readings become unstable, calibration fails repeatedly, glass bulb is cracked, or physical damage is evident; no fixed replacement interval—depends on usage and sample types.
Disposal: Dispose of used probe according to local electronic waste regulations; the probe contains glass and plastic components.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: Replacement pH and ORP electrode for DPH1 and DPH1+ pen meters, used for measuring pH and ORP in purified water, dialysis fluids, biological fluids (serum, plasma, urine), pharmaceutical process water, and environmental samples in clinical diagnostic, pharmaceutical, and research settings.
Clinical Role: Essential replacement component for water quality testing instruments used in dialysis units, hospital engineering departments, pharmaceutical quality control laboratories, clinical chemistry laboratories, and environmental monitoring programs requiring portable pH and ORP measurement.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Handling: Handle probe with care to avoid damage to the glass pH bulb; glass bulb is fragile and can break if bumped or dropped. Do not touch glass bulb with fingers, as oils can affect measurement accuracy.
Cleaning: Do not use abrasive materials or harsh chemicals on the glass pH bulb; rinse thoroughly after cleaning to remove all residue. The removable protective cover facilitates safe cleaning .
Storage: Always store probe with protective cap in place; keep the pH sensing bulb moist using 3 mol KCl storage solution to prevent drying; never store dry .
Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use.
Compatibility: Use only with DLAB DPH1 or DPH1+ meters; using with incompatible meters may damage the probe or produce inaccurate readings .
Chemical Compatibility: Avoid using the electrode in organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, or methyl ethyl ketone, which may damage the polycarbonate plastic body .
Calibration Requirement: Always recalibrate the meter after installing a new DPH1-S probe to ensure measurement accuracy for pH and ORP.
Avoid Freezing: Do not allow the probe to freeze; freezing temperatures may damage the glass pH bulb .
Avoid Dehydration: Do not allow the pH sensing bulb to dry out; prolonged dry storage will damage the glass membrane and require extended rehydration .
Training: Only trained laboratory personnel should replace and handle the DPH1-S probe for water quality testing applications.

2. FIRST AID MEASURES

Glass Breakage: If the glass pH bulb breaks, carefully collect any glass fragments using forceps; dispose in sharps container; inspect sample for glass contamination before further use; avoid skin contact with broken glass edges.
Sample Splash: If sample splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water.
Storage Solution Exposure: If electrode storage solution (3 mol KCl) splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water.
Electrical Malfunction: If the meter with installed probe shows signs of electrical malfunction, remove batteries immediately; do not attempt to operate; contact service personnel.

3. FIRE FIGHTING MEASURES

Flammability: The plastic housing (polycarbonate) is combustible; may melt or burn if exposed to flame or high heat.
Extinguishing Media: Use carbon dioxide or dry chemical extinguisher for fires involving plastic components.
Fire Response: Remove from heat source if safe to do so; do not use water on electrical fire.

Conductivity Probe (DPH1-S)

Conductivity Probe (DPH1-S)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Replacement pH Electrode for Pen-Based Water Quality Analyzers

2. pH Measurement for Dialysis Water and Biological Fluid Testing

Primary Use: Measures pH across the range of -2.00 to 16.00 pH with accuracy of ±0.01 pH ±1 digit and resolution of 0.1 or 0.01, supporting pH assessment of purified water, dialysis fluids, and biological specimens when used with compatible pen meters .

3. Automatic Temperature Compensation for Accurate Readings

Primary Use: Integrated temperature sensor provides automatic temperature compensation (ATC) across 0 to 60 degrees Celsius, ensuring pH measurements are automatically corrected to standard reference temperatures.

4. ORP Measurement Capability with Same Electrode

Primary Use: The DPH1-S electrode also supports oxidation-reduction potential (ORP) measurement from -1000.0 to +1000.0 mV with accuracy of ±0.1 percent of full scale ±1 digit when used with the DPH1 or DPH1+ pen meters .

5. Compatibility with DPH1 and DPH1+ Meter Systems

Primary Use: Designed as the dedicated replacement electrode for DLAB DPH1 pen-type pH/ORP meter and DPH1+ Bluetooth pen meter, ensuring proper fit and electrical compatibility for pH, ORP, and temperature measurement .

SECONDARY & SUPPORTIVE USES

1. Purified Water System Verification: Used with DPH1 and DPH1+ meters to verify pH of purified water, water-for-injection (WFI), and distilled water in hospital and laboratory water treatment systems.

2. Pharmaceutical Process Water Testing: Supports pH measurement for validation and routine monitoring of pharmaceutical water systems, with probe replacement ensuring continued compliance.

3. Dialysis Water Quality Verification: Used with DPH1 and DPH1+ meters to test pH of dialysis water and dialysate solutions, with regular probe replacement maintaining measurement accuracy.

4. Cooling Tower and Boiler Water Testing: Measures pH in cooling towers, boiler feed water, and steam generation systems to assess corrosion potential and treatment efficacy.

5. Environmental and Wastewater Monitoring: Enables pH measurement of wastewater discharge, surface water, and groundwater in hospital environmental monitoring programs.

6. Reagent and Buffer Quality Control: Verifies pH of laboratory reagents, buffers, and preparation solutions to ensure consistent experimental conditions.

7. Aquaculture and Zebrafish Facility Management: Used to check pH levels in aquatic animal housing facilities within research institutions.

8. Hydroponic and Agricultural Nutrient Management: Monitors pH of nutrient solutions in controlled environment agriculture and research plant growth facilities.

9. Electrode Replacement for Extended Instrument Life: Serves as the replacement component to extend the service life of DPH1 and DPH1+ meters when the original probe reaches end of life .

10. ORP Measurement for Disinfection Monitoring: Enables oxidation-reduction potential measurement for assessing disinfection efficacy in water treatment systems .

11. Removable Protective Cover: Features a removable electrode bulb protective cover that prevents damage to the glass pH sensing bulb and facilitates easy cleaning .

12. Calibration Support: Compatible with CH, USA, and NIST standard buffer solutions for flexible calibration options corresponding to regional requirements .

13. IP67-Compatible Probe: The probe shares the meter’s IP67 dustproof and waterproof rating, suitable for use in harsh field environments .

14. Combined Electrode Design: Combination electrode design allows replacement as needed to meet different testing requirements.

15. Storage Solution Requirement: Requires storage in 3 mol KCl pH/ORP electrode soaking solution to prevent the pH sensing bulb from drying out and to maintain optimal performance .

16. Polycarbonate Electrode Body: The polycarbonate body is resistant to many aqueous solutions but should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone .

17. Multi-Parameter Compatibility: Compatible with both pH and ORP measurement on the DPH1 series meters, allowing a single electrode to support multiple water quality parameters.

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A replacement combined pH/ORP electrode for DLAB DPH1 and DPH1+ pen meters, integrating pH sensing (glass bulb), reference, and temperature sensing (thermistor) into a single replaceable probe for water quality analysis .

Designation: DPH1-S Conductivity Probe, DPH1-S Replacement Electrode, pH/ORP Pen Meter Probe, DLAB DPH1-S, Combination Electrode.

Key Components:

pH Sensing Element: Glass bulb for pH measurement .

Temperature Sensor: Integrated thermistor for automatic temperature compensation .

Probe Body: Polycarbonate combined probe design .

Connection: Compatible with DPH1 and DPH1+ meter housing .

Protective Cover: Removable electrode bulb protective cover .

Materials: Glass pH bulb, polycarbonate body, thermistor sensor .

2. TECHNICAL & PERFORMANCE PROPERTIES

Compatible Meters: DPH1 Pen-Type pH/ORP Meter, DPH1+ Bluetooth Pen Meter .

pH Measurement Range (with compatible meter): -2.00 to 16.00 pH .

pH Resolution (with compatible meter): 0.1 or 0.01 (selectable) .

pH Accuracy (with compatible meter): ±0.01 pH ±1 digit .

pH Calibration (with compatible meter): 1 to 3 points automatic calibration; automatic buffer recognition; supports CH, USA, and NIST standard buffer solutions .

pH Automatic Temperature Compensation Range: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) .

ORP Measurement Range (with compatible meter): -1000.0 to +1000.0 millivolts .

ORP Resolution (with compatible meter): 0.1 or 1 (selectable) .

ORP Accuracy (with compatible meter): ±0.1 percent of full scale ±1 digit .

Temperature Measurement Range (with compatible meter): 0.0 to 60.0 degrees Celsius (32.0 to 140.0 degrees Fahrenheit) .

Temperature Accuracy (with compatible meter): ±0.2 degrees Celsius .

Probe Type: Combined electrode design; replaceable .

Sensing Material: Glass (pH bulb), Thermistor (temperature) .

Body Material: Polycarbonate .

Protection Class (with meter): IP67 (dustproof and waterproof) .

Calibration Compatibility: Supports CH, USA, and NIST standard buffer solutions .

Storage Requirement: 3 mol KCl pH/ORP electrode soaking solution recommended for pH bulb hydration .

Replacement Purpose: Extends instrument service life by allowing electrode replacement rather than complete meter replacement .

Chemical Compatibility: The polycarbonate electrode body should avoid organic solvents such as carbon tetrachloride, trichloroethylene, tetrahydrofuran, toluene, xylene, and methyl ethyl ketone .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Pen-style combined probe designed to fit DPH1 and DPH1+ meter housing; sealed, maintenance-free design .

Sensing Technology: Glass pH bulb for hydrogen ion activity; thermistor for automatic temperature compensation; reference system for stable potential .

Removable Protective Cover: Features a removable electrode bulb protective cover that prevents damage to the glass pH sensing bulb and facilitates easy cleaning before and after use .

Installation: User-replaceable; installs directly into DPH1 and DPH1+ meter body.

Compatibility: Specifically designed for DLAB DPH1 and DPH1+ pen meters; not compatible with other meters .

Maintenance: Requires no electrolyte refilling; clean with distilled water after each use; keep pH bulb moist using 3 mol KCl storage solution; never store dry .

Storage: Store electrode with protective cap in place; keep pH sensing bulb moist using 3 mol KCl storage solution to prevent drying; never store dry .

Hydration: If the pH sensing bulb has dried out, soak in 3 mol KCl storage solution for 24 to 48 hours before use; recalibrate before use.

Visual Confirmation: Removable protective cover allows visual inspection of glass bulb condition and facilitates cleaning.

Durability: Designed for harsh field environments with IP67 rating when installed on meter .

Calibration: Performed through the DPH1 and DPH1+ meters using standard solutions; probe does not require separate calibration.

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: Accessory and replacement part for in vitro diagnostic preparatory equipment (DPH1 and DPH1+ meters).

Safety Certifications: Manufactured under ISO 9001:2015 quality management system; CE compliant .

Protection Class (with meter): IP67 (dustproof and waterproof against temporary immersion up to 1 meter for 30 minutes) .

Material Safety: Glass pH bulb (fragile, handle with care); polycarbonate plastic body (avoid organic solvents); RoHS compliant materials.

Electrical Safety: Low-voltage passive component; safe for use with DPH1 and DPH1+ meters (four AAA batteries, 1.5 volts each).

Replacement Indicator: Replace probe when readings become unstable, calibration fails repeatedly, glass bulb is cracked, or physical damage is visible.

Consumable Status: The electrode is considered a consumable item and is not covered under the instrument warranty .