Product Introduction
SMT-02 is a semiconductor type gas sensor designed to detect flammable gas and smog components. The sensor gas sensing material will change accordingly with the concentration of the target gas. A simple circuit can be used to convert the change in conductivity into an output voltage signal corresponding to the gas concentration. This product has good sensitivity to propane, smoke, etc. in a wide concentration range.
Main Application
● Household gas leak alarm
● Portable gas detection instrument
● Smog and combustible gas alarm
Sensor Characteristics
● High sensitivity
● Stable performance
● Fast response and reply time
● 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 |
Combustible gas, smoke |
|
Detection Concentration Range |
300～10000ppm (combustible gas) |
|
Heating Voltage(VH) |
5.0V±0.1V DC or PWM |
|
Sensor Voltage |
≤24V DC |
|
Load Resistance |
Adjustable |
|
Heating Element Resistance (RH) |
29Ω±3Ω (room temperature) |
|
Heating Power |
≤950mW |
|
Sensitivity |
Rs(in air)/Rs(2000ppm C3H8 )≥ 5 |
|
Output Voltage (VRL) |
2.5V～4.0V(in 2000ppm C 3H8 ) |
|
Concentration Response Ratio |
≤0.6(R3000ppm/R1000ppm C3H8 ) |
|
Test Environment |
20℃±2℃; 55%±5%RH |
|
Life Time |
10 years |
