(3621/3631)

• Easy to install 1/8 DIN plastic casing.
• Clear LCD displays pH, mV or temperature with backlight.
• Universal power supply input from 100-240VAC.
• Automatic buffer recognition of US and NIST buffer sets. Calibrated data is stored in memory and ready to for use on power up.
• Automatic or manual temperature compensation.
• Displays absolute and relative ORP.
• Two sets of programmable on/off relays for pH or ORP (3621).
• Isolated and reversible 4-20mA current output for pH or ORP allows it to be used as a proportional output (3631).
• RoHS compliant.