Horiba LAQUA PD210-K pH/ORP/DO/Tem Meter

Features: Automatic pH calibration - up to 5 points (NIST, USA pH buffers) / up to 6 points (DIN pH buffers) 0.01 pH resolution Offset and average slope display  Automatic / manual temperature compensation and temperature calibration function ORP calibration option Dissolved oxygen (DO) concentration in ppm (mg/L) and % saturation 0.01 mg/L or 0.1% DO resolution Compensates salinity, temperature, and atmospheric pressure  Up to 2 DO calibration points  Auto log data; built-in memory can store up to 500 data Auto shut-off (programmable: up to 30 minutes) Auto stable, auto hold, and real time measurement modes Calibration alarm (programmable: up to 90 days) Built-in electrode holder allows 2 electrodes to be attached Monochrome LCD with white LED backlight: 50 x 50 mm Phono jack output for connecting the meter to computer for software upgrade  Casing is IP67 waterproof/dustproof, shock amp; scratch resistant, non-slip Powered by 2 x AA batteries Packaged with electrodes and calibration solutions in carrying case 3 years meter warranty