HANNA HI9142N Portable Dissolved Oxygen Meter

The ever increasing demand for instant on-site analysis results has created a need for innovative and rugged portable, waterproof meters.
Field work can subject instrumentation to the inclemency of weather. Cold, rain, snow, dust and humidity can cause condensation to breech the housing. Once the housing has been compromised, the meter is susceptible to diminishing performance and life. The rugged, waterproof housing of the HI 9142 solves many of the problems of field use.

Calibration is performed with HI 7040 zero oxygen solution, while 100% calibration is done in air.
The polarographic probe (HI 76407/4) is accurate to 0.3 ppm and is supplied with a 
4 m (13') cable that allows measurements to be taken even in hard to reach places.

Specification:
Range    O2    0.0 to 19.9 mg/L (ppm)
Temperature    -5.0 to 50.0ºC (32.0 to 122.0ºF)
Resolution    O2    0.1 mg/L (ppm)
Temperature    0.1°C (1ºF)
Accuracy (@20°C)    O2    ±1.5% F.S.
Temperature    ±0.2°C (±1ºF) (excluding probe error)
Calibration         manual, at one or two points (zero and slope)
Temperature
Compensation         automatic, 0 to 50°C (32 to 122°F)
Probe         HI 76407/4 polarographic DO probe with internal temperature sensor, DIN connector and 4 m (13’) cable
Battery Type /
Life         1.5V AAA (3) / approximately 1,000 hours of continuous use
Environment         0 to 50°C (32 to 122°F); RH max 95%
Dimensions         185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)
Weight         300 g (10.6 oz.)