CyberTech ph-107 Digital pH Meter Tester,Pocket Size PH Meter/Water Quality Tester for Aquariums,Swimming Pools,PH 0-14.0 Measuring Range,0.1PH Resolution,2 Pack Calibration Solution Mixture Included

This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. Please be sure to calibrate with buffer solution before use.

Calibration:

-- Immerse the tester up to the maximum immersion level in the PH 4 or 6.86 buffer solution. (Package Includes 2 pack of PH substance which makes 250 ml buffer solutions, PH 4 or PH 6.86).

-- Allow the reading to stablilize and using the small screwdriver adjust the calibration trimmer to reading 6.9

warning:

-- Keep away from Children. In case of skin contact, rinse with water.