ORP-BL Pen-Type ORP Tester for Water Quality | ±1200mV

ORP-BL Pen-Type Water Quality Tester – Measure Oxidation-Reduction Potential with Precision

The ORP-BL Pen-Type ORP Tester is a professional-grade, portable instrument designed to accurately measure the oxidation-reduction potential (ORP) of water. Whether you're testing hydrogen-rich water cups, water purifiers, aquariums, swimming pools, or laboratory samples, this compact pen-style meter delivers fast, reliable readings with minimal effort. Made in Mainland China.

Key Features

• Built-In Electrode Design: Integrated electrode for professional ORP (negative potential) measurement with a wide range of ±1200mV, 1mV resolution, and ±5mV accuracy — results you can count on.
• Dual-Parameter Display: Simultaneously reads ORP potential values and solution temperature, with free switching between ℃ and ℉ units. Built-in temperature compensation ensures stable, reliable data for both hot and cold water.
• HOLD Value Lock Function: Stabilize your reading and lock it with a single button press — retains data even after the probe is removed from water. Perfect for photo recording, comparison, and solo on-site testing.
• Portable Pen-Style Body: Compact (168 × 33 × 20mm), lightweight ABS construction with a waterproof probe. Auto-shuts off after 10 minutes of inactivity to conserve battery life.
• Wide Application Range: Ideal for hydrogen-rich water cups, water purifiers, aquaculture, swimming pools, labs, and water treatment facilities. Supports instrument calibration — a must-have for water quality professionals and enthusiasts alike.

Specifications

Package Contents

• 1 × ORP-BL Test Instrument

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Frequently Asked Questions

Q: What does an ORP tester measure and why is it useful for water quality testing?

A: An ORP (Oxidation-Reduction Potential) tester measures the electrical potential of water to determine its oxidizing or reducing capacity. A negative ORP value indicates antioxidant (reducing) properties, which is commonly associated with hydrogen-rich water. This tester helps you verify the performance of hydrogen-rich water cups, water purifiers, electrolyzed water systems, and more — giving you objective data about your water quality.

Q: Is the ORP-BL tester suitable for aquarium and pool use?

A: Yes! The ORP-BL pen-type tester is designed for a wide range of applications including aquariums, swimming pools, aquaculture systems, and laboratory water quality testing. Its waterproof probe and portable pen-style body make it convenient for both indoor and outdoor testing scenarios.

Q: How do I lock a reading on the ORP-BL tester?

A: Simply press the HOLD button once your reading stabilizes. The display will lock the current ORP and temperature values, allowing you to record, photograph, or compare results even after removing the probe from the water sample. This makes single-person on-site testing straightforward and efficient.

Q: What is the battery life and how does auto shut-off work?

A: The ORP-BL tester is powered by a button battery and features an automatic shut-off function that activates after 10 minutes of inactivity, helping to extend battery life and ensure the device is always ready when you need it.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.