Apera Instruments AI461 SX716 Portable Lab Dissolved Oxygen DO Meter, Waterproof, Automatic Temperature, Salinity Compensation and Calibration

Intelligent Functions: Auto. Calibration, Auto. Temperature and Salinity Compensation, 100 groups data storage, Auto Power Off Adopts digital filter technology to intelligently improve meter’s response speed and accuracy. Smile icon will appear when reading is stable The polarographic DO electrode (2m cable) is equipped with built-in temperature and salinity sensors. The electrode polarization only takes 3-5 minutes Reliable Structure: IP57 Waterproof and Dustproof, Large clear backlit LCD, Powered by AA batteries Comes with a complete test kit and a 2-YEAR Warranty