HANNA HI 98106 Champ pH Tester, upgraded to HI 98107

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Milwaukee PH55 Waterproof pH/ºC/ºF Tester Meter, pH 55

Milwaukee Instruments Martini pH DUAL LEVEL LCD TESTER WITH AUTOMATIC TEMPERATURE COMPENSATION, 2 POINTS AUTOMATIC CALIBRATION, ± 0.1 pH ACCURACY; RANGE; -2.0 TO 16.0 pH.

pH/temperature Specifications: Range -2.00 to 16.00 pH, -5.0 to 60.0 °C / 23.0 to 140 °F Resolution 0.1 pH, 0.1 °C / 0.1 °F, Accuracy @ 20°C ± 0.1 pH, ±0.3 °C/ ±0.6 °F, Calibration automatic, 1 or 2 points temperature compensation automatic Probe (included) pH/°C (Mi56P) Auto off after 8 minutes of non-use Dimensions 200 x Ø 38mm Weight 100 g