Products
CH4 Gas Sensor
for portable gas detector
Application:
Gas leak alarm for home, combustible gas alarm for industry and portable gas detectorProduct characteristics:
Long lifePerformance
MQ-K4B is mainly used in gas leak alarm for home, combustible gas alarm for industry and portable gas detector. It is sensitive to CH4.
Technical specifications
| Media | CH4 |
| Sealing type | plastic sealing |
| Testing range | 300-10000ppm |
| Loop voltage | ≤24V DC |
| Heating voltage | Vh=5v±0.1 AC or DC |
| Load resistor | RL(adjustable) |
| Heating resistor | Rh=27Ω±3Ω(room temperature) |
| Heating power | ≤900mW |
| Sensitivity | Rs(in air)/Rs(in 5000ppm CH4)≥5 |
| Output voltage | Vs=2.5-4.0V(in 5000ppm CH4) |
| Concentration slope | ≤0.6(R5000ppm/R1000ppm CH4) |
| Temperature and humidity | 20℃±2℃, 55%±5%RH |
| Pre-heating time | >48h |
Basic test circuit
Storage and recommended aging time:
Storage time | Recommended aging time |
Less than one month | no less than 48 hours |
1 to 6 months | no less than 72 hours |
| More than 6 months | no less than 168 hours |
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-K4B sensor, please contact account manager.
TEL：0086-0351-5249552
Whatsapp：+86 18335818384
Email：[email protected]
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