Product Introduction
The gas-sensitive material used in the SMT-05 gas sensor is a semiconductor material with low conductivity in clean air. When there is a detection gas in the environment where the sensor is located, the conductivity of the sensor increases with the increase of the concentration of combustible gas in the air. By using a simple circuit, the change in conductivity can be converted into an output signal corresponding to the gas concentration. This product, especially liquefied gas (propane), is a low-cost sensor suitable for a variety of applications.
Main Application
● Civilian gas leak detector and alarm
● Portable gas detector
Sensor Characteristics
● High sensitivity
● Stable performance
● Fast response and recovery time
● Strong anti-interference ability
● Long life time
For more information, Please check our product datasheet or send the consultation to us.
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|
Item |
Parameter |
|
Detection Gas |
Propane, methane |
|
Detection Concentration Range |
300～10000ppm (methane, propane) |
|
Heating Voltage(VH) |
5V±0.1V |
|
Sensor Operating Voltage |
≤24V DC |
|
Heating Element Resistance (RH) |
29Ω±3Ω (room temperature) |
|
Heating Power (PH) |
≤950mW |
|
Sensitivity |
Rs (in air)/ Rs (2000ppm C3H8 )≥ 5 |
|
Output Voltage (VRL ) |
2.5V～4.0V(in 2000ppmC3H8 ) |
|
Concentration Response Ratio |
≤0.6(R3000ppm/R1000ppm C3H8 ) |
|
Test Environment |
20℃±2℃; 55%±5%RH |
|
Life Time |
10 years |
