Portable oxygen meter DO 450

Dissolved Oxygen / Temperature Affordable optical RDO technology reduces maintenance time and costs ::Maintenance free optical probe with no electrolyte eliminates hassle of replacing delicate membranes and salt build up from refilling solutions ::Durable waterproof and dustproof design with IP67 rating ::Large, backlit custom display provides measurement with temperature ::Switch between % saturation and mg/L (ppm) dissolved oxygen with a press of a button ::Calibration due alarm – Set a visible reminder when it is time to recalibrate the meter ::Manual barometric pressure and salinity correction ::Selectable ºC or ºF – Choose the unit to best fit your application ::Ready indicator, manual or automatic measurement hold feature and optional automatic shutoff function ::Store up to 500 data sets – Easy USB or RS232 output with optional data cables ::Built-in real-time clock stamps stored data and calibration data with time and date – Meets standards for GLP (Good Laboratory Practices) ::500 hours battery life or use optional universal power adapter ::Built-in stand with wall-mount – Allows for easy benchtop measurement and storage Dissolved Oxygen - Range - 0 to 200 %; 0 to 20 ppm/mg/L Resolution - 0.10 %; 0.1 ppm/mg/L Accuracy - ±2 %; ±0.1 ppm or mg/L up to 8; ±0.2 ppm or mg/L above 8 Calibration - - Zero and saturation Temperature - Range - 0.0 to 50.0 ºC (0.0 to 122.0 ºF) Resolution - 0.1 ºC/ºF Accuracy - ±0.5 ºC; ±0.9 ºF Calibration - Offset in 0.1 increments, ±10 ºC or ±18 ºF