The Horiba LAQUA PC220-K Handheld PH / ORP / Conductivity / Resistivity / Total Dissolved Solids / Salinity / Temperature Meter is a waterproof standard handheld meters with backlit LCD.

• 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
• With real-time clock and date/time stamp for GLP compliance
• Auto log data; built-in memory can store up to 1000 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 meter to computer via PC (USB) cable for data collection and to printer via printer (RS232) cable for printout
• 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