Product Introduction
The SMT1008 is semiconductor type gas sensor developed for test methane. The sensing material is specially developed by IDM independently for resist methane gas interference. When the sensing material is exposed to sensor, the conductivity of the sensor will change. A simple circuit can be used to convert the change in conductivity into an output voltage signal corresponding to the gas concentration.
Main Application
● Methane combustible gas leak monitoring devices
● Firefighting/safety detection systems for homes, factories and commercial uses.
● Combustible gas leak alarm, gas leak detector
● Smart gas meter, gas water heater, gas integrated stove, range hood, etc.
Sensor Characteristics
● Small size
● Low power consumption
● High sensitivity
● Fast response and recovery time
● Simple test circuit
● Good stability
● Long life time
Pin definition diagram
Suzhou Huiwen Nanotechnology Co., Ltd. is a high-tech company specializing in the development and production of advanced smart gas sensors and providing integrated gas detection solutions. The gas sensors based on MEMS process and nanostructure sensing materials have many advantages such as low power consumption, small size, high sensitivity, good selectivity and easy integration.
Professional R&D team
The proportion in R&D of employees with master's and doctoral degrees is 40%.
Two production based.
7x24 hours fast response
For more information, Please check our product datasheet or send the consultation to us.
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Product number |
SMT1008 |
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Standard package |
TO package |
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Detection gas |
Methane |
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Detection concentration |
0 ～ 10000ppm methane |
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Resolution |
500 ppm |
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Standard circuit conditions |
sensor voltage |
V C |
≤5 V DC |
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Heating voltage |
V H |
2.0 ±0.05 V DC or PWM |
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Load Resistance |
R |
Adjustable (subject to delivery report) |
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Gas sensor characteristics under standard test conditions |
Heating element resistor |
R H |
45 ± 5 Ω ( measured at room temperature ) |
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Heating power |
P H |
≤30 mW |
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Sensor resistance |
R S |
5 ~ 300 KΩ ( tested in air ) |
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Sensitivity |
S |
R 0 (in air)/Rs (in 5000ppm methane ) ≥ 5 |
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Response ratio |
α |
≤ 0.5 (R 500 0ppm / R 1000 ppm methane) |
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Standard test conditions |
temperature humidity |
20±2℃; 55±5%RH |
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Standard test circuit |
VC : 5 V or 3.3 ± 0.1 V ; VH : 2.0 ± 0.05 V |
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Preheat time |
≥3 min |
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Response time (T90 ) |
<15 s |
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Recovery time (T10 ) |
<3 0 s |
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Life time |
≥ 3 years |
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