Adwa AD 12 Waterproof pH Testers

Adwa AD 12 Waterproof pH Testers AD11 and AD12 are waterproof pH and temperature testers. The housing has been completely sealed against humidity. All pH readings are automatically temperature compensated ( ATC) , and temperature values can be displayed in ° C or ° F units. The meter can be calibrated at one or two points for pH with auto-buffer recognition and against five memorized buffer values. Measurements are highly accurate with a unique stability indicator right on the LCD. The models are also provided with a low battery symbol which warns the user when the batteries need to be replaced. The AD11P pH electrode, supplied with the meter, is interchangeable and can be easily replaced by the user. The encapsulated temperature sensor allows fast and accurate temperature measurement and compensation. Each meter is supplied complete with: • AD11P pH electrode • 4 x 1.5V batteries, button type • User manual TECHNICAL DATA Range -2.0 to 16.0 pH ( AD11) -2.00 to 16.00 pH ( AD12) -5.0 to 60.0° C / 23.0 to 140.0° F Resolution 0.1 / 0.01 pH 0.1° C / 0.1° F Accuracy ( @ 20° C/ 68° F) ± 0.1 / ± 0.01 pH ± 0.5° C / ± 1° F pH Calibration Automatic, 1 or 2 point with 2 sets of memorized buffers ( pH 4.01/ 7.01/ 10.01 or 4.01/ 6.86/ 9.18) pH Electrode AD11P ( included) Temperature Compensation Automatic Battery Type 4 x 1.5V button type Battery Life Approx. 300 h of use Auto-off After 8 minutes of non-use Environment -5 to 50° C ( 23 to122° F) ; RH 100% Dimensions 175.5 x 39 x 23 mm Weight 100 g