Extech RE300 ExStik ORP Meter
- Measures ORP/Redox from -999 to 999mV
- Automatic electronic self calibration
- Simulated analog bargraph displays change in ORP reading
- High resolution of 1mV
- Memory stores and recalls 15 readings and saves last calibrated value
£120.00View at Amazon
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Extech RE300 ExStik ORP Meter
Customer reviews (5)
22 June 2014Too technical to use
I wanted to use the meter in demonstrating the ORP in ionized water, compared to tap water.
10 January 2014Not easy to use
Because I wasn't getting consistent baseline readings, I emailed the company.
30 October 2013Essential instrument when you want to know total oxidizers
We use handheld testers to verify calibration results on production equipment.
12 June 2013The best ORP meter
This product is the highest quality.
10 December 2012Soil Testing
This device is awesome.