Pen Meter (DORP1)

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The Pen Meter (DORP1) is a pocket-sized, single-parameter pen tester measuring Oxidation-Reduction Potential (ORP) from -1000.0 mV to +1000.0 mV with accuracy of ±0.1% F.S. ±1 digit and resolution of 0.1/1 mV, featuring replaceable combined electrode design (DORP1-S), multi-color backlit LCD display with reading stability indicator and auto data lock, IP67 dustproof/waterproof rating, 0-60℃ temperature measurement with ±0.2℃ accuracy, 1 point automatic calibration with 222 mV ORP standard, support for CH/USA/NIST standard buffer solutions, low battery indicator, user-configurable auto shut-off and backlight duration, and complete field-ready kit including hard carrying case, ORP standard solution (222 mV, 30mL), 3 mol KCl electrode storage solution (10mL), sample vial (30mL), 4 AAA batteries, and lanyard—ideal for water quality testing in clinical, pharmaceutical, and environmental applications .

For the dialysis technician, infection control officer, and water quality specialist, the DORP1 enables rapid, on-site ORP measurement to verify disinfection efficacy in purified water systems, dialysis fluids, and pharmaceutical process water—critical parameters for ensuring patient safety during renal replacement therapy and drug manufacturing . The replaceable electrode design extends instrument service life, while the IP67 rating ensures reliable operation in harsh field environments .

Key features include multi-color backlit display with reading stability indicator and auto data lock when stable (smiley icon), function, low battery indicator, user-configurable auto shut-off time and backlight duration, and compatibility with CH, USA, and NIST calibration standards . The DORP1+ variant adds Bluetooth connectivity for wireless connection to mobile APP with two-way control, unlimited data storage, graphical display modes (chart, curve, dial, normal), calibration reminders, measurement object ID management, and timed storage .

For the patient, accurate ORP monitoring of water used in dialysis and pharmaceutical manufacturing ensures that critical treatment fluids meet stringent safety and quality standards—preventing potential harm from improperly treated water and supporting the production of safe, effective medications.

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Categories: LABORATORY EQUIPMENT AND SUPPLIES, Analyzers Tags: Dialysis Water Testing, DLAB Pen Meter (DORP1), IP67 ORP Tester, ORP Pen Meter, Oxidation Reduction Potential Tester, Pen Meter (DORP1), Pen-Type ORP Analyzer, Pocket ORP Tester, Portable ORP Meter, Water Quality Monitoring

Description

Pen Meter (DORP1)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Disinfection Efficacy Monitoring in Dialysis Water Systems

Primary Use: Provides a pocket-sized, single-parameter pen meter that measures Oxidation-Reduction Potential (ORP) from -1000.0 mV to +1000.0 mV with accuracy of ±0.1% F.S. ±1 digit, specifically designed for assessing the oxidizing power of disinfection processes in water treatment systems .
How it helps: For infection control officers and dialysis technicians, the DORP1 pen meter enables rapid, on-site verification of ORP levels in purified water loops, dialysis water systems, and hospital plumbing—directly confirming that disinfection processes are actively combating microbial growth. The multi-color backlit display ensures easy reading in various lighting conditions, while the IP67 dustproof/waterproof rating allows for use in demanding utility environments . For the patient, accurate ORP monitoring ensures that water used in renal replacement therapy is free from harmful microorganisms, meeting critical safety standards for dialysis treatment.

2. Water Quality Verification for Pharmaceutical Manufacturing

Primary Use: Used to measure ORP levels in pharmaceutical process water, purified water systems, and water-for-injection (WFI) loops to verify oxidation-reduction status and ensure water quality compliance .
How it helps: For the pharmaceutical QA/QC chemist and water quality specialist, the DORP1 provides portable ORP measurement with 0.1/1 mV resolution and automatic temperature compensation across 0-60°C range. The replaceable electrode design (DORP1-S) extends instrument service life, while the reading stability indicator and auto data lock ensure accurate, reproducible measurements . For the patient, rigorous ORP monitoring of pharmaceutical water systems helps ensure that medications and IV solutions meet stringent purity standards, supporting product safety.

3. Antioxidant and Redox Status Assessment

Primary Use: Measures the oxidation-reduction potential of aqueous solutions, providing information about the total oxidizing or reducing capacity of water samples in healthcare and research applications .
How it helps: For the clinical laboratory scientist and researcher, the DORP1 enables rapid assessment of redox status in various aqueous matrices, supporting studies on oxidative stress, water treatment efficacy, and chemical reaction monitoring. The Bluetooth-compatible variant (DORP1+) allows wireless data transfer to mobile APP with unlimited storage, calibration reminders, and sample ID management . For the patient, redox status monitoring of water used in medical device processing and pharmaceutical manufacturing helps ensure product quality and safety.

4. Field and Utility Water Testing

Primary Use: Pocket-sized pen design with IP67 dustproof/waterproof rating supports on-site ORP measurement in diverse locations including cooling towers, boiler feed water, wastewater discharge points, and environmental monitoring sites .
How it helps: For hospital facility engineers and environmental safety officers, the DORP1’s portable, battery-operated design (4 × AAA batteries) allows for convenient spot-checking of water quality at various points in hospital water distribution systems. The bundled hard carrying case, ORP standard solution (222 mV, 30mL), and electrode storage solution provide complete field-ready capability . For the patient and community, consistent monitoring of hospital water systems helps prevent healthcare-associated infections and ensures environmental compliance.

SECONDARY & SUPPORTIVE USES

1. Disinfection Control in Hydrotherapy and Spa Pools: Monitors ORP levels in hospital hydrotherapy pools, aquatic therapy centers, and spas to ensure chlorine or other oxidizers remain at effective concentrations for microbial control.

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

3. Wastewater Treatment Monitoring: Assesses ORP levels in hospital wastewater treatment systems to evaluate aeration efficiency and treatment process performance.

4. Environmental and Surface Water Monitoring: Portable pen format is ideal for field studies measuring ORP in natural water bodies to assess ecosystem health and pollution levels.

5. Pharmaceutical Process Validation: Supports ORP measurement for validation and routine monitoring of pharmaceutical water systems and cleaning validation protocols.

6. Research and Academic Laboratories: Serves as a portable ORP testing tool for research applications in redox chemistry, environmental science, and water quality studies.

7. Food and Beverage Quality Control: Verifies ORP levels in process water, cleaning solutions, and product formulations in hospital nutrition services and food safety testing.

8. Aquaculture and Zebrafish Facility Management: Monitors ORP in aquatic animal housing facilities within research institutions to ensure optimal environmental conditions.

9. Educational and Laboratory Training: Serves as a teaching tool for demonstrating ORP measurement principles in medical technology and clinical laboratory science training programs.

10. Chlorine and Oxidizer Concentration Verification: Provides rapid assessment of oxidizing agent effectiveness in disinfection systems by measuring ORP as a surrogate for available chlorine.

11. Electrode Replacement Compatibility: Uses replaceable DORP1-S electrode design, extending instrument service life and allowing continued use when the original probe reaches end of life .

12. Bluetooth Data Management (DORP1+ Model): Supports wireless connection to mobile APP for two-way control, unlimited data storage, graphical display modes, calibration reminders, sample ID management, and timed storage .

13. Multi-Standard Calibration: Provides CH, USA, and NIST standard buffer solution options for flexible calibration based on regional requirements .

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A pocket-sized, single-parameter pen meter (pen tester) measuring Oxidation-Reduction Potential (ORP) and temperature, with replaceable combined electrode design, multi-color backlit LCD display, and IP67 dustproof/waterproof rating .
Designation: DORP1 Pen Meter, DORP1 Pen Tester, Pocket ORP Meter, DLAB ORP Pen Meter .
Key Components:

Instrument Meter: Pocket-sized pen housing with multi-color backlit LCD display, IP67 dustproof/waterproof rating, and low battery indicator .
ORP Electrode: Replaceable combined probe (DORP1-S, pre-installed) with platinum sensing elements .
ORP Standard Solution: 222 mV ORP calibration standard, 30mL .
Electrode Storage Solution: 3 mol KCl ORP electrode soaking solution, 10mL .
Sample Vial: 30mL sample vial for convenient sample collection and testing .
Power Supply: 4 × 1.5V AAA alkaline batteries (pre-installed) .
Accessories: Hard carrying case (28.0×23.0×8.2 cm), lanyard, instruction manual .
Bluetooth Variant (DORP1+): Adds Bluetooth connectivity, mobile APP support, advanced data management, calibration reminders, sample ID management, and timed storage .

2. TECHNICAL & PERFORMANCE PROPERTIES

Measurement Parameter: mV (ORP) and Temperature (℃/℉) .
ORP Measurement Range: (-1000.0 ~ +1000.0) mV .
ORP Resolution: 0.1 / 1 (selectable) .
ORP Accuracy: ±0.1% F.S. ± 1 digit .
Temperature Measurement Range: 0~60℃ (32~140°F) .
Temperature Accuracy: ±0.2℃ .
Display: Multi-color backlit LCD display; display mode changes color based on measurement status; reading stability indicator; auto data lock when stable .
Calibration: Supports 1 point ORP calibration; compatible with CH, USA, NIST standard buffer solutions .
User Settings: Customizable auto shut-off time; adjustable backlight duration; low voltage indicator; .
Protection Class: IP67 (dustproof and waterproof against temporary immersion) .
Operating Conditions: 0~60℃; suitable for field and laboratory use .
Power: 4 × AAA alkaline batteries (pre-installed); user replaceable; low battery indicator .
Dimensions (Carrying Case): 28.0 × 23.0 × 8.2 cm .
Electrode Compatibility: Replaceable combined probe (DORP1-S) .
Bluetooth Features (DORP1+): Two-way control, unlimited data storage, graphical display modes (chart, curve, dial, normal), calibration reminders, measurement object ID management, timed storage, user-friendly UI .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Pocket-sized, ergonomic pen-style handheld design with replaceable combined probe; IP67 dustproof/waterproof rating for field use .
Display: Multi-color backlit LCD display; screen color changes based on measurement status and data stability; .
User Interface: Simple operation; short press to power on; long press to enter calibration; reading stability indicator (smiley icon) confirms stable measurement; auto data lock automatically locks readings when stable .
Calibration: Supports 1 point automatic ORP calibration; rinse electrode in pure water, submerge in calibration solution (222 mV ORP standard), wait for stability indicator, confirm calibration .
Measurement Mode: Single parameter ORP measurement; displays ORP in mV and temperature in ℃/℉ simultaneously .
Data Locking: Auto-hold function automatically locks readings when stability indicator confirms stable measurement; short press to release auto-hold .
Replaceable Electrode: Combined probe design allows electrode replacement (DORP1-S) to extend instrument service life .
Bluetooth Operation (DORP1+): Supports wireless connection to mobile APP for two-way control, data transfer, and advanced data management.
APP Display Modes (DORP1+): Provides multiple display modes (graph, curve, dial, normal) for different data visualization preferences .
Portability: Compact pocket-sized design with hard carrying case for safe transport and storage; lanyard included for convenient carrying .
Power Management: Low voltage indicator alerts when batteries need replacement; user-configurable auto shut-off and backlight duration to conserve battery life .

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: In Vitro Diagnostic (IVD) preparatory equipment; laboratory water quality testing instrument .
Safety Certifications: Manufactured under ISO 9001:2015 quality management system; CE compliant .
Protection Class: IP67 (dustproof and waterproof against temporary immersion up to 1 meter for 30 minutes), suitable for harsh field environments .
Electrical Safety: Low-voltage operation with 4 × AAA batteries (1.5V each); safe for use in laboratory and field environments.
Material Safety: Plastic housing with replaceable combined probe; platinum sensing elements for ORP measurement; RoHS compliant materials.
Calibration Compliance: Supports CH, USA, NIST standard buffer solutions for region-specific calibration requirements .
GLP Compliance (DORP1+): APP supports calibration reminders, measurement object ID management, timed storage, and unlimited data storage for quality documentation .
Bluetooth Security (DORP1+): Bluetooth connection requires pairing; secure data transfer; APP supports user authentication.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store the meter in its hard carrying case in a clean, dry environment; protect from extreme temperatures and direct sunlight; remove batteries for long-term storage.
Cleaning: Rinse the ORP electrode with distilled water after each use; wipe the meter body with a soft, damp cloth using a mild detergent; do not submerge the meter body beyond the IP67 rating limits; for the platinum sensing element, avoid touching or scrubbing with abrasive materials.
Inspection: Inspect the electrode for damage or contamination before each use; check the platinum sensing element for integrity; verify calibration before critical measurements.
Operation: Remove the protective cap; power on by short pressing the power button; rinse electrode with distilled water; immerse electrode in sample, stir gently; wait for stability indicator (smiley icon); read stabilized value; auto data lock will lock readings when stable .
Calibration: Calibrate before first use or when measurement errors are suspected; rinse electrode in pure water, submerge in ORP calibration standard (222 mV), shake gently, let stand; wait for stability indicator, then confirm calibration .
Electrode Storage: Store electrode with protective cap in place; keep electrode moist using 3 mol KCl ORP electrode soaking solution to prevent drying; never store dry .
Electrode Hydration: If electrode has dried out, soak in 3 mol KCl storage solution for 24-48 hours before use; recalibrate before use.
Battery Replacement: Replace batteries when low voltage indicator appears; use 4 × AAA alkaline batteries (1.5V each); ensure correct polarity when installing new batteries.
APP Setup (DORP1+): Download the DLAB mobile APP, follow the to connect via Bluetooth, configure measurement parameters, and enable data storage functions .
Spill Management: If liquid spills onto the meter, wipe immediately with a soft, dry cloth; despite IP67 rating, avoid prolonged immersion.

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: Portable ORP measurement for disinfection efficacy monitoring in dialysis water systems, pharmaceutical water quality verification, cooling tower and boiler water testing, wastewater treatment monitoring, and environmental water quality assessment .
Clinical Role: Essential water quality testing instrument for dialysis units, hospital engineering departments, infection control, pharmaceutical quality control laboratories, and environmental monitoring programs requiring rapid on-site ORP assessment.

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Electrical Safety: Do not immerse the meter beyond the IP67 rating limits; avoid immersion in liquids other than water samples; ensure battery compartment is properly sealed before use.
Electrode Handling: The platinum sensing element is delicate; do not touch or scrub with abrasive materials; inspect the sensing element before each use for damage.
Electrode Storage: Always store electrode with protective cap in place; keep electrode moist using 3 mol KCl storage solution; never store dry; dried electrodes require rehydration before use .
Calibration Verification: Calibrate daily or before critical use using fresh ORP calibration standard (222 mV) .
Sample Compatibility: Rinse electrode thoroughly with distilled water between different samples to prevent cross-contamination; ensure there are no air bubbles trapped on the electrode surface during measurement.
Battery Safety: Use only AAA alkaline batteries; do not mix old and new batteries; remove batteries for long-term storage to prevent leakage; dispose of used batteries properly.
Environmental Protection: Dispose of calibration standards, sample vials, and other consumables according to local environmental regulations; ORP standard solution (222 mV) contains salts and may be disposed of via standard laboratory waste streams.
Bluetooth Security (DORP1+): Ensure Bluetooth connection is secure; use APP password protection if available; do not leave APP open on shared devices without logging out .
Data Backup (DORP1+): Regularly export data from APP to secure storage to prevent data loss in case of mobile device failure.
Training: Only trained laboratory personnel should operate the DORP1 Pen Meter for water quality testing applications.

2. FIRST AID MEASURES

Calibration Standard Exposure: If ORP calibration standard (222 mV solution) splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water.
Sample Splash: If biological or chemical sample 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 shows signs of electrical malfunction (erratic readings, display issues, battery leakage), remove batteries immediately; do not attempt to operate; contact service personnel.
Electrode Damage: If the platinum sensing element is damaged, discontinue use; replace the electrode with a new DORP1-S probe.
Battery Leakage: If battery leakage occurs, remove batteries immediately, clean the battery compartment with a dry cloth, dispose of batteries properly; avoid skin contact with leaked electrolyte.

3. FIRE FIGHTING MEASURES

Flammability: The plastic housing, cable, and carrying case are combustible; may melt or burn if exposed to flame or high heat.
Extinguishing Media: Use carbon dioxide (CO₂) or dry chemical extinguisher for fires involving plastic components.
Fire Response: Remove batteries if safe to do so; do not use water on electrical fire; evacuate area if fire cannot be quickly contained.

Pen Meter (DORP1)

Pen Meter (DORP1)

PRIMARY CLINICAL & DIAGNOSTIC USES

1. Disinfection Efficacy Monitoring in Dialysis Water Systems

Primary Use: Provides a pocket-sized, single-parameter pen meter that measures Oxidation-Reduction Potential (ORP) from -1000.0 mV to +1000.0 mV with accuracy of ±0.1% F.S. ±1 digit, specifically designed for assessing the oxidizing power of disinfection processes in water treatment systems .

2. Water Quality Verification for Pharmaceutical Manufacturing

Primary Use: Used to measure ORP levels in pharmaceutical process water, purified water systems, and water-for-injection (WFI) loops to verify oxidation-reduction status and ensure water quality compliance .

3. Antioxidant and Redox Status Assessment

Primary Use: Measures the oxidation-reduction potential of aqueous solutions, providing information about the total oxidizing or reducing capacity of water samples in healthcare and research applications .

4. Field and Utility Water Testing

Primary Use: Pocket-sized pen design with IP67 dustproof/waterproof rating supports on-site ORP measurement in diverse locations including cooling towers, boiler feed water, wastewater discharge points, and environmental monitoring sites .

SECONDARY & SUPPORTIVE USES

1. Disinfection Control in Hydrotherapy and Spa Pools: Monitors ORP levels in hospital hydrotherapy pools, aquatic therapy centers, and spas to ensure chlorine or other oxidizers remain at effective concentrations for microbial control.

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

3. Wastewater Treatment Monitoring: Assesses ORP levels in hospital wastewater treatment systems to evaluate aeration efficiency and treatment process performance.

4. Environmental and Surface Water Monitoring: Portable pen format is ideal for field studies measuring ORP in natural water bodies to assess ecosystem health and pollution levels.

5. Pharmaceutical Process Validation: Supports ORP measurement for validation and routine monitoring of pharmaceutical water systems and cleaning validation protocols.

6. Research and Academic Laboratories: Serves as a portable ORP testing tool for research applications in redox chemistry, environmental science, and water quality studies.

7. Food and Beverage Quality Control: Verifies ORP levels in process water, cleaning solutions, and product formulations in hospital nutrition services and food safety testing.

8. Aquaculture and Zebrafish Facility Management: Monitors ORP in aquatic animal housing facilities within research institutions to ensure optimal environmental conditions.

9. Educational and Laboratory Training: Serves as a teaching tool for demonstrating ORP measurement principles in medical technology and clinical laboratory science training programs.

10. Chlorine and Oxidizer Concentration Verification: Provides rapid assessment of oxidizing agent effectiveness in disinfection systems by measuring ORP as a surrogate for available chlorine.

11. Electrode Replacement Compatibility: Uses replaceable DORP1-S electrode design, extending instrument service life and allowing continued use when the original probe reaches end of life .

12. Bluetooth Data Management (DORP1+ Model): Supports wireless connection to mobile APP for two-way control, unlimited data storage, graphical display modes, calibration reminders, sample ID management, and timed storage .

13. Multi-Standard Calibration: Provides CH, USA, and NIST standard buffer solution options for flexible calibration based on regional requirements .

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: A pocket-sized, single-parameter pen meter (pen tester) measuring Oxidation-Reduction Potential (ORP) and temperature, with replaceable combined electrode design, multi-color backlit LCD display, and IP67 dustproof/waterproof rating .

Designation: DORP1 Pen Meter, DORP1 Pen Tester, Pocket ORP Meter, DLAB ORP Pen Meter .

Key Components:

Instrument Meter: Pocket-sized pen housing with multi-color backlit LCD display, IP67 dustproof/waterproof rating, and low battery indicator .

ORP Electrode: Replaceable combined probe (DORP1-S, pre-installed) with platinum sensing elements .

ORP Standard Solution: 222 mV ORP calibration standard, 30mL .

Electrode Storage Solution: 3 mol KCl ORP electrode soaking solution, 10mL .

Sample Vial: 30mL sample vial for convenient sample collection and testing .

Power Supply: 4 × 1.5V AAA alkaline batteries (pre-installed) .

Accessories: Hard carrying case (28.0×23.0×8.2 cm), lanyard, instruction manual .

Bluetooth Variant (DORP1+): Adds Bluetooth connectivity, mobile APP support, advanced data management, calibration reminders, sample ID management, and timed storage .

2. TECHNICAL & PERFORMANCE PROPERTIES

Measurement Parameter: mV (ORP) and Temperature (℃/℉) .

ORP Measurement Range: (-1000.0 ~ +1000.0) mV .

ORP Resolution: 0.1 / 1 (selectable) .

ORP Accuracy: ±0.1% F.S. ± 1 digit .

Temperature Measurement Range: 0~60℃ (32~140°F) .

Temperature Accuracy: ±0.2℃ .

Display: Multi-color backlit LCD display; display mode changes color based on measurement status; reading stability indicator; auto data lock when stable .

Calibration: Supports 1 point ORP calibration; compatible with CH, USA, NIST standard buffer solutions .

User Settings: Customizable auto shut-off time; adjustable backlight duration; low voltage indicator; .

Protection Class: IP67 (dustproof and waterproof against temporary immersion) .

Operating Conditions: 0~60℃; suitable for field and laboratory use .

Power: 4 × AAA alkaline batteries (pre-installed); user replaceable; low battery indicator .

Dimensions (Carrying Case): 28.0 × 23.0 × 8.2 cm .

Electrode Compatibility: Replaceable combined probe (DORP1-S) .

Bluetooth Features (DORP1+): Two-way control, unlimited data storage, graphical display modes (chart, curve, dial, normal), calibration reminders, measurement object ID management, timed storage, user-friendly UI .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Pocket-sized, ergonomic pen-style handheld design with replaceable combined probe; IP67 dustproof/waterproof rating for field use .

Display: Multi-color backlit LCD display; screen color changes based on measurement status and data stability; .

User Interface: Simple operation; short press to power on; long press to enter calibration; reading stability indicator (smiley icon) confirms stable measurement; auto data lock automatically locks readings when stable .

Calibration: Supports 1 point automatic ORP calibration; rinse electrode in pure water, submerge in calibration solution (222 mV ORP standard), wait for stability indicator, confirm calibration .

Measurement Mode: Single parameter ORP measurement; displays ORP in mV and temperature in ℃/℉ simultaneously .

Data Locking: Auto-hold function automatically locks readings when stability indicator confirms stable measurement; short press to release auto-hold .

Replaceable Electrode: Combined probe design allows electrode replacement (DORP1-S) to extend instrument service life .

Bluetooth Operation (DORP1+): Supports wireless connection to mobile APP for two-way control, data transfer, and advanced data management.

APP Display Modes (DORP1+): Provides multiple display modes (graph, curve, dial, normal) for different data visualization preferences .

Portability: Compact pocket-sized design with hard carrying case for safe transport and storage; lanyard included for convenient carrying .

Power Management: Low voltage indicator alerts when batteries need replacement; user-configurable auto shut-off and backlight duration to conserve battery life .

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: In Vitro Diagnostic (IVD) preparatory equipment; laboratory water quality testing instrument .

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

Protection Class: IP67 (dustproof and waterproof against temporary immersion up to 1 meter for 30 minutes), suitable for harsh field environments .

Electrical Safety: Low-voltage operation with 4 × AAA batteries (1.5V each); safe for use in laboratory and field environments.

Material Safety: Plastic housing with replaceable combined probe; platinum sensing elements for ORP measurement; RoHS compliant materials.

Calibration Compliance: Supports CH, USA, NIST standard buffer solutions for region-specific calibration requirements .

GLP Compliance (DORP1+): APP supports calibration reminders, measurement object ID management, timed storage, and unlimited data storage for quality documentation .

Bluetooth Security (DORP1+): Bluetooth connection requires pairing; secure data transfer; APP supports user authentication.

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store the meter in its hard carrying case in a clean, dry environment; protect from extreme temperatures and direct sunlight; remove batteries for long-term storage.

Cleaning: Rinse the ORP electrode with distilled water after each use; wipe the meter body with a soft, damp cloth using a mild detergent; do not submerge the meter body beyond the IP67 rating limits; for the platinum sensing element, avoid touching or scrubbing with abrasive materials.

Inspection: Inspect the electrode for damage or contamination before each use; check the platinum sensing element for integrity; verify calibration before critical measurements.

Operation: Remove the protective cap; power on by short pressing the power button; rinse electrode with distilled water; immerse electrode in sample, stir gently; wait for stability indicator (smiley icon); read stabilized value; auto data lock will lock readings when stable .

Calibration: Calibrate before first use or when measurement errors are suspected; rinse electrode in pure water, submerge in ORP calibration standard (222 mV), shake gently, let stand; wait for stability indicator, then confirm calibration .