Products
C3H8 Gas Sensor
Application:
Household gas leak alarmsProduct characteristics:
This product has good sensitivity to propane in a wide concentration range and has the advantages of long life, low cost and simple driving circuit.Product Description
The gas-sensitive material used in the MQ-K5B gas sensor is tin dioxide (SnO2) with low conductivity in clean air. When there is combustible 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. A simple circuit can be used to convert the change in conductivity into an output signal corresponding to the gas concentration.
The MQ-K5B gas sensor is highly sensitive to propane and has strong anti-interference ability to alcohol and some other interfering gases.
Product images
Technical indicators
| Product model | MQ-K5B | ||
| Product type | Semiconductor gas sensor | ||
| Standard packaging | Plastic packaging | ||
| Detect gas | Propane | ||
| Detect concentration | 300~10000ppm(Propane) | ||
| Standard circuit conditions | Loop voltage | Vc | 5.0V±0.1V DC |
| Heat voltage | VH | 5.0V±0.1V AC or DC | |
| Load resistance | R L | adjustable | |
| Characteristics of gas sensing components under standard testing conditions | Heating resistor | RH | 28 Ω±3 Ω(indoor temperature) |
| Heating power | PH | ≤1W | |
| Sensitivity | S | Rs(in air)/Rs(in 5000ppm Propane)≥5 | |
| Output Voltage | Vs | 2.5V～4.0V (in 5000ppm CH4) | |
| Concentration slope | α | ≤0.6(R5000ppm/R1000ppm CH4) | |
| Standard testing conditions | Temperature/humidity | 20℃土2℃; 55%士5%RH | |
| Standard Test Circuit | VC: 5V±0.1V; VH: 5V±0.1V | ||
| Warm-up time | no less than 48 hours | ||
| Oxygen concentration | 21% (not less than 18%) (Oxygen concentration will affect the initial value, sensitivity, and repeatability of the sensor. Please consult for use when using at low oxygen concentrations) | ||
| Product Life | 10 years | ||
Basic circuit
Storage time and corresponding aging time
| Storage time | Recommended aging time |
| Under 1 month | no less than 48 hours |
| 1-6 months | no less than 72hours |
| Over 6 months | no less than 168 hours |
Application
TenSensor, China's first listed gas sensor company,Tensensor can provide more than 100 varieties of six series including：
semiconductor gas sensor
electrochemical gas sensor
infrared gas sensor
dust sensor
pyroelectric sensor
thermopile sensor, etc.
which can be used for more than 200 kinds of gas and infrared, dust and other indicators detection, widely used in the field of security for detecting gas leakage, noxious gas leakage, smog and fire, the field of family, office and factory for detecting HCHO, VOC, CO2, PM2.5 and so on.
Moreover, the solutions for security, household electrical appliances, consumer electronics, smart home, instruments and meters are available.
For more information about MQ-K5B sensor, please contact account manager.
TEL：0086-0351-5249552
Whatsapp：+86 18335818384
Email：[email protected]
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