You’ll never lose this tester by dropping it into a tank or pond; the waterproof ORPTestr floats! IP67-rated housing protects the instrument from rugged field and plant environments.

Replaceable sensor lets you reuse meter body many times without losing waterproof and dustproof protection. Push-button calibration lets you standardize tester in calibration solutions, or making it agree with an established work standard. Large surface area platinum band sensor gives a faster, more stable response.

• Waterproof, dustproof housing floats!
• Double junction electrode is ideal for dirty water, heavy metals, sulfides and organics.
• Replaceable sensor lets you reuse same meter body, saving you money.
• Push-button ±150 mV offset adjustment.

Applications
General: Ideal for ORP applications which are typically found in the -999 to +1000 mV span. Industrial: Chromate reduction (+200 mV approx); Cyanide oxidation (+300 mV approx); Pulp bleaching (+900 mV approx) Water Treatment: Monitor ozone systems (+900 mV); Check free chlorine activity (+600 mV) in pools, spas, and cooling towers; Water purification and drinking water (+300 mV); Aquarium monitoring; Water pollution monitoring.