Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor

Semiconductor Hydrogen Sulfide Gas Sensor

SMT-029

High sensitivity
Fast response and recovery time
Long life
$2.21
Quantity :
5030
-
1
+
Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor
Semiconductor Hydrogen Sulfide Gas Sensor

Detail Information

Product Introduction

 

The SMT-029 is a semiconductor type gas sensor used to detect hydrogen sulfide in the environment. The conductivity of the gas-sensitive material of the sensor changes accordingly when it encounters the measured gas. Using a simple test circuit, this change in conductivity is converted into a signal output corresponding to the change in gas concentration, thereby realizing gas detection. The sensor is packaged in a four-pin metal shell and is a low-cost sensor suitable for a variety of applications.

 

Sensor Characteristics

 

● High sensitivity

● Fast response and recovery time

● Long life

● Low cost

● The test circuit is simple

 

Main Application

 

● Civilian hydrogen sulfide alarm

● Portable hydrogen sulfide alarm

● Industrial hydrogen sulfide alarm

 

Parameter

Item Parameter 
Detection GasHydrogen sulfide
Detection Concentration0~50ppm(hydrogen sulfide)
Heating Voltage(VH)5V±0.1V DC or PWM
Sensor Operating Voltage≤24V DC
Heating Element Resistance (RH)65Ω±10Ω (room temperature)
Heating Power (PH)380mW±25mW
Sensitivity (S)Rs(in air)/Rs(50ppm hydrogen sulfide)≥ 2
Output Voltage (VS)≥0.5V (in 50ppm hydrogen sulfide)
Response Ratio≤0.6(R200ppm/R50ppm hydrogen sulfide)
Test Environment20℃±2℃; 55%±5%RH
Life Time5 years

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