Extech RE300 Exstik Digital Handheld ORP Meter

Extech RE300 Exstik ORP Meter measures ORP (Oxidation Reduction Potential) from -999 to 999mV. Flat surface electrodes gives “On-the-Spot” measurements With ±4mV accuracy and a high 1mV resolution. Waterproof (IP57) design floats in water and protects the meter in wet environment from taking water damage. The easy to replace electrode module is interchangeable with pH and chlorine ExStik modules. The built in chip automatically recognizes the type of probe plugged in for specific measurements.