Measuring range: 0.00 ~ 14.00pH
Accuracy: ± 0.2pH
Power: 3 × 1.5v alkaline
Dimensions: 152 × 29 × 15mm
- range 0.0 - 14.0 pH
- accuracy ± 0.1 pH (20oC) or ± 0.2pH
- batteries 3 (three) type 1.5V alkaline
How to calibrate: Dissolve the buffer powder in 1000ml cold water and stir until dissolved. Take 1ml of the solution and redissolve it in 100ml cold water. Open and dip the pH meter to the line in the solution and with the needle in the box turn the screw on the back of the instrument until the indication 6.9.
We close the pH meter. Remove and clean well with water, being careful not to get water into the pH meter. Wipe with paper and store.