ExStik® ORP Waterproof Meter is a portable and multifunctional water quality detector manufactured by Extech Instruments Corporation, which can measure ORP value with ±4mV accuracy and high 1mV resolution.
The Extech RE300 is an ExStik® ORP Waterproof Meter designed for on-the-spot measurements of oxidation-reduction potential (ORP). It features a flat surface electrode design suitable for liquids, semi-solids, and solids. The device includes automatic electronic self-calibration, data validation indicators, and a simulated analog bar graph display.
| Measurement Range | -999 to 999mV |
|---|---|
| Resolution | 1mV |
| Accuracy | ±4mV |
| Display Type | 3-1/2 digit (2000 count) Digital display with bar graph |
| Memory Capacity | 15 readings |
| Power Source | four SR44W button batteries |
| Dimensions | 1.4 x 6.8 x 1.6” (35.6 x 172.7 x 40.6mm) |
| Weight | 3.85oz (110g) |
The meter provides measurements with ±4mV accuracy.
Yes, it features automatic electronic self-calibration.
Yes, it has a Waterproof (IP57) design that floats in water and protects the meter in wet environment.
It requires four SR44W button batteries.