Hanna Waterproof Portable PH Meter Kit HI9124

Description User-selectable “ calibration time out” Automatic calibration Automatic Temperature Compensation Tutorial messages on LCD BEPS ( Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings Battery % displayed on startup. Range pH -2.00 to 16.00 pH Temperature 20.0 to 120.0° C / -4.0° F to 248.0° F Resolution pH 0.01 pH Temperature0.1° C / 0.1° F pH Calibration automatic 1 or 2 point with 5 memorized buffer values ( 4.01, 6.86, 7.01, 9.18, 10.01) Offset Calibration ± 1 pH Slope Calibration From 80 to 108% Temperature Compensation automatic or manual, -20 to 120° C ( -4 to 248° F) pH Electrode HI 1230B, double junction, gel filled, BNC connector and 1m ( 3.3’ ) cable ( included) Temperature Probe HI 7662 with 1 m ( 3.3’ ) cable ( included) Input Impedance 1012 Ohm Battery Type / Life 1.5V AAA ( 3) / approximately 200 hours of continuous use. Auto-off after 20 minutes of non-use ( can be disabled) Environment 0 to 50° C ( 32 to 122° F) ; RH max 100% Dimensions 185 x 72 x 36 mm ( 7.3 x 2.8 x 1.4’ ’ ) Weight 300 g ( 10.6 oz.)