Introduction

H2S sensor is MEMS-technology based gas sensor with semiconductor nano material as sensing material, which can detect H2S of different concentrations in different environmental conditions.

Characteristic

The sensor has the characteristics of small size, low power consumption, high sensitivity, long lifetime

Main application

• Air cleaners and purifiers; Food freshness monitoring; Portable air detector;

• Public toilet odor monitoring; Deodorant Machine etc…

Technical Parameters

Sensor Model	S1007
Sensor style	MEMS semiconductor sensor
Standard Package	Ceramic Package
Detected Gas	H2S
Detection Range/ppm	0 ~ 3 ppm (H2S)
Resolution/ppm	0.01 ppm
Circuit Voltage	Circuit Voltage	VC	5V or 3.3V DC
	Heating Voltage	VH+	1.8 ± 0.05 V DC
	Load Resistance	RL	Adjustable
Sensor Unit Characteristics	Heating Resistance	RH	43±5 Ω(Room Temperature）
	Heating Power	RH	≤ 36mW
	Sensor Resistance	Rs	10~100 KΩ(in air)
	Sensitivity	S	R0 (in air)/Rs (in 0.2 ppm H2S) ≥ 1.8
	Slope	a	≤ 0.5(R 1 ppm/R 0.2ppm（H2S）
Standard Test Conditions	Temperature Humidity	20±2 ℃；55±5% RH
	Standard Test circuit	VC :5 V or 3.3±0.1 V VH :1.8V±0.05V
	Preheating time	3-5 min
Response Time（T90）	<30 s
Recovery Time（T10）	<60 s
Expected Lifetime	≥3 Years