Features Waterproof and Dustproof Housing That Floats!
Push-Button One-Point Calibration at 4, 7 or 10 pH!

This unit features a replaceable electrode, so you can use the original instrument through many electrode replacement cycles. Because the replacement electrode only costs a fraction of the whole unit, the waterproof pH Testr 1 is the most economical tester in its class.

Specifications: Range: -1.0 to 15.0 pH. Resolution: 0.1 pH. Accuracy: ±0.2 pH. Dimensions: 5.9"L x 1.5" dia