Extech RE300 ExStik ORP Meter - Waterproof Oxidation Reduction Potential Tester with Flat Surface Electrode, 1mV Resolution, Memory, and Analog Bargraph for Pool, Spa & Water Quality Analysis

Product Description Take the guesswork out of water quality analysis with the Extech RE300 ExStik ORP Meter. Whether you are managing the chlorination of a commercial swimming pool, monitoring cooling towers, treating wastewater, or balancing a complex aquarium ecosystem, measuring your Oxidation-Reduction Potential (Redox) has never been easier or more reliable. Unlike traditional meters with fragile, easily fouled glass bulb sensors, the RE300 features an innovative flat surface electrode. This unique design allows you to obtain highly accurate measurements in liquids, semi-solids, and even solids, all while minimizing maintenance and preventing damage. It delivers a wide measurement range of -999 to 999mV with a high resolution of 1mV, ensuring you get the clinical precision required for professional compliance and environmental testing. Built for the realities of fieldwork, the RE300 boasts an IP57 waterproof housing that literally floats if dropped in water. The smart interface includes an automatic electronic self-calibration function, a digital LCD with a simulated analog bargraph to visually track trends, and an internal memory capable of storing up to 15 readings for quick recall. As an incredibly versatile platform, the base unit features a built-in chip that automatically recognizes interchangeable pH and chlorine probe modules (sold separately), allowing your device to adapt to your future testing needs. Complete with a protective sensor cap, sample cup, batteries, and a neckstrap, this all-in-one kit is ready to elevate your environmental diagnostics from day one. From the Manufacturer The Extech RE300 ExStik ORP Meter measures the ORP/Redox from -999 to 999mV. It has an automatic electronic self calibration and a simulated analog bargraph which displays the change in ORP readings. It has a high resolution of 1mV and a memory that stores and recalls up to 15 readings and it saves the last calibrated value. The data validation indicators show the user that the reading is stabilized and it features data hold, auto shut-off and low battery indication. This meter is waterproof to IP57 which protects the meter from the wet environment. The Extech RE300 ExStik ORP Meter comes complete with a flat surface ORP electrode, a protective sensor cap, a sample cup with a cap, four 3V CR2032 button batteries and a 48 inch neck strap. Incorporated in 1970, Extech Instruments is based in Waltham, Massachusetts USA, just west of Boston. Recognized for the breadth and depth of its Test & Measurement offering and strong distribution network, Extech was acquired by FLIR Systems in November 2007. Extech Instruments’ high-value, handheld test instruments and FLIR-branded infrared thermal imager are sold through a network of national catalog houses, regional stocking distributors, internet, and international master distributors. The company has become one of the largest manufacturers and suppliers of test equipment and portable printers and the Extech Instruments brand is regarded in many industries as the brand of choice. ISO 9001:2000 certified by TUV, Extech’s enviable reputation is built on innovative products that offer unique and patented designs with features, functions and reliability at an affordable price.

• FLAT SURFACE ELECTRODE: Say goodbye to easily broken glass bulbs. The rugged flat surface sensor allows for quick, on-the-spot ORP and Redox measurements in liquids, semi-solids, and even solids, ensuring reliable contact and superior accuracy.
• HIGH-RESOLUTION ACCURACY: Stop guessing with your water quality. This highly precise digital meter measures from -999 to 999mV with a sharp 1mV resolution and an impressive ±4mV accuracy, giving you laboratory-grade results right in the field.
• FULLY WATERPROOF DESIGN: Never panic about dropping your tool in the pool or tank. Boasting a rugged IP57 waterproof rating, this resilient meter actually floats in water, protecting your investment from accidental submersion and wet environments.
• SMART MEMORY AND DISPLAY: Keep track of your data effortlessly. The built-in memory stores and recalls up to 15 tagged readings, while the high-contrast LCD features a simulated analog bargraph to help you visualize ORP changes in real-time.
• INTERCHANGEABLE SENSOR MODULES: Future-proof your testing toolkit. The smart built-in chip automatically recognizes different probes, allowing you to easily swap the ORP module for pH or chlorine sensors (sold separately) as your needs grow.