DO Meter Portable Dissolved Oxygen Meter| Hanna HI-9142

Portable Dissolved Oxygen Meter DO Meter | Hanna HI-9142 Specifications : DO Range 0.0 to 19.9 mg/L (ppm) DO Resolution 0.1 mg/L (ppm) DO Accuracy (@ 25C/77F) 1.5% F.S. Temperature Range -5.0 to 50.0C (23.0 to 122.0F) Temperature Resolution 0.1C (1F) Temperature Accuracy (@ 25C/77F) 0.2C (1F) (excluding probe error) Temperature Compensation automatic, 0 to 50C (32 to 122F) Probe polarographic DO probe, internal temperature sensor, DIN connector Calibration manual, at one or two points (zero and slope) Battery Type / Life 1.5V AA (4) / approx. 500 hours of use Environment 0 to 50C (32 to 122F); RH max 100% Dimensions 196 x 80 x 60 mm (7.7 x 3.1 x 2.4 #34;) Ordering Information : HI9142 is supplied complete with HI76407 DO probe, HI76407A/P pre-formed PTFE DO membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.