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
ORP calibration option
Automatic / manual temperature compensation and temperature calibration function
Automatic (up to 4 points) and manual (up to 5 points) conductivity calibration
Adjustable reference temperature and temperature coefficient
Adjustable cell constant and selectable measurement unit
Conductivity and total dissolved solids (TDS) conversion
Four (4) TDS calibration curves for wide range of applications: EN27888, Linear, 442, NaCl
Two (2) salinity calibration curves: NaCl, Seawater 
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 only
Casing is IP67 waterproof/dustproof, shock & scratch resistant, non-slip
Powered by 2 x AA batteries
Packaged with electrodes and calibration solutions in carrying case