DH30P is designed to measure the partial pressure of dissolved hydrogen based on polarography principle.
Hydrogen molecule in hydrogen water enters the electrode chamber filled with electrolyte through selective semipermeable membrane of electrodes. Under polarization voltage between anode and cathode, current related to the concentration of dissolved hydrogen is generated. With temperature compensation, the concentration value of dissolved hydrogen is obtained. The measurement range of this DH30P is up to 8 ppm. It can be assured to selectively measure dissolved hydrogen without interference from other reducing substances.
The results of measurement can be compared with those of Gas Chromatography.

DH30P Applications:
All kinds of dissolved hydrogen water concentration measurement, including hydrogen atomizers, and hydrogen generators.

Concentration measuring range	0.000 - 8.000 ppm (mg/L)
Resolution	0.001 ppm (mg/L)
Accuracy	±1.5 %
Temperature	°C,°F optional
Temp. Range	0 - 75.0 °C / 32 - 140°F
Auto Temp. Compensation	0 - 75°C
Temperature	°C,°F optional
Sensor	CS6933 replaceable dissolved hydrogen sensor
LCD	20*30 mm multi-line crystal display with backlight
Backlight	ON/OFF optional
Auto power off	10 minutes without key be pressed
Power	1x1.5V AAA7 battery
Working Environment	0°C - 75°C, Relative Humidity: <90%
Protection	IP67
Dimensions	(HXWXD)185 X 40 X48mm
Weight	95g