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While testing
Unlike electronic pH meters
Step 3: Adjust correction potentiometer with a mini-screwdriver until the reading is 256mv
5cm High x 23 cm Wide x 10
Additional information
Digital Redox ORP testing meter Hydrogen While testing1999mv to +1999mv pen type digital redox water tester ORP meter Step 1: Put the orp meter into a saturated potassium chloride solution for 2 to 3 hours. Step 2: Clean the electrode with water, then put orp meter into 256mv standard solution and shake gently. Step 3: Adjust correction potentiometer with a mini screwdriver until the reading is 256mv. How to Use: Step 1: Remove the protective cap, clean the electrode with water. Step 2: Press " on off"
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