This optional 256mv calibration solution 30ml is used for Digital Redox Meter -1999mV~1999mV Millivolts Pool Aquarium Oxidation Reduction Potential (ORP) Set includes. 2 x solution 30ml
Features
- High-quality ORP calibration solution with a precise 256mV reading
- Easy to use with a 30ml bottle and clear instructions
- Accurate measurements for aquariums, pools, and other water applications
- Reliable and consistent results for optimal water quality control
- Essential for maintaining healthy aquatic environments
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