ORP PEN/Test adopted with contemporary micro-electronic circuit design, to offer high performance, steady and accuracy measurement. This PEN is widely applies in work of chemical analysis, environmental protection, food, swimming pool, aquaculture and agriculture, and so on. PAY ATTENTION FOR USING ORP PROBE: ORP Probe use within the environment of waste water of industry or chemical reagent, it might probably read accurate ORP value immediately, but within the aquarium which ecology similar to the character, so it need more time to get the accurate ORP value. When the ORP measuring applied in marine aquarium, please insert the probe in water continuously. The accurate ORP reading will likely be obtained after 24 hours. If measuring for freshwater aquarium. The accurate reading will likely be obtained after 48 hours.
Testing Range: ±1500mv , Accuracy:±2%FS
Ambient temperature: 0°C to 50°C