ME4-H2S hydrogen sulfide gas sensor is constant potential electrolysis type. Oxidation-reduction reaction with hydrogen sulfide and oxygen take place respectively on the working electrode and on the counter electrode. The process releases electric charge and generates current. The current is in direct proportion to the concentration of hydrogen sulfide. So the concentration of the target gas could be got by measuring the value of current.

Application

It is used for hydrogen sulfide detection in industrial occasions, mine and environmental protection field.

Features

Low power consumption
High precision
High sensitivity
Wide linear range
Good anti-interference ability
Excellent repeatability and stability

Specifications

Detection gas	Hydrogen Sulfide (H2S)
Detection range	0～100ppm
Max range	500ppm
Sensitivity	(0.8±0.15) µA/ppm
Resolution	0.1ppm
Response time (T90)	＜30S
Bias voltage	0mV
Load resistance	10Ω (recommended)
Repeatability	＜2% Output value
Stability (/month)	＜2%
Output linearity	Linear
Zero drift (-20℃～40℃)	≤0.2ppm
Temperature range	-20℃～50℃
Humidity range	15%～90%RH
Pressure range	standard atmospheric pressure±10%
Life span	2 years (in air)

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

1 PC ME4-H2S Hydrogen Sulfide Gas Sensor