Automatic pH calibration up to 5 points using USA, NIST, or Custom buffers
Switchable pH resolutions – 0.1, 0.01, 0.001 pH
Offset and slope display
Automatic / Manual temperature compensation and temperature calibration function
Auto-Hold / Auto-Stable measurement 
Auto log data; Built-in memory can store up to 999 data 
Real-time clock and date / time stamping
Auto shut-off (programmable: 1 to 30 minutes)
Calibration alarm (programmable: 1 to 400 days)
Custom black and white static LCD
RS232 and USB outputs for connecting to a GLP/GMP compatible printer or computer
Security (password setting)