pH meter Features:
-1000 point data memory
-Interval time capture function
-Large LCD display for all parameters
-Water proof housing
-Low power consumption and Ni-H battery option.
-Sensor with built in ID and calibration memory function
-Software available and expandable for use with PC/Spreadsheet download, external printers, recorders and other devices.
HM-31P is dual use for pH and ORP. (Pt Sensor required) and has expanded output capability.

pH Meter Standard Accessories
-HM-30P comes with GST-2739C combination 3 in 1 electrode
-HM-31P comes with GST 2729C, Calibration memory sensor
-pH 4.01 buffer (100ml)
-pH 6.86 buffer (100ml)
-3.3 mol/l KCl Filling solution, 50ml
-Polyethylene beaker
-Operation manual
-Batteries (2 "AA" cells, 3VDC battery)