เซ็นเซอร์ตรวจจับควัน MQ-2

เซ็นเซอร์ตรวจจับควัน MQ-2

MQ2 Smoke Gas Sensor เซ็นเซอร์ตรวจจับควัน เป็นsensor ตรวจจับควัน  ส่งค่ากลับมาเป็น Analog กับ Digital  สามารถปรับความไวได้

MQ-2 gas sensor sensitive material used in clean air conductivity is lower tin dioxide (SnO2). When the sensor is present in the environment in which the combustible gas, the sensor's conductivity increases with the concentration of combustible gases in air increases. Using a

simple circuit can be converted to the change in conductivity of the gas concentration with the corresponding output signal. MQ-2 gas sensor for gas, propane, hydrogen of high sensitivity, natural gas and other combustible vapors detection is also very satisfactory. The sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.

สเปค

• Range: 10~1000ppm

• High quality double panel design, with power and TTL signal output indicator

• With DO switch signal (TTL) output and AO analog signal output

• TTL output effective signal for low level (when output lower than usually the signal light,

• can be directly meet SCM or relay module)

• Analog output voltage: 0~5V, the higher concentration, the higher voltage

• High sensitivity for the harmful gases detection

• There are four screw holes for positioning

• Product size: 32mm (L) x 20mm (W) x 22mm (H)

• Long service life and reliable stability, fast response and recovery characteristics

• Working voltage: 5V

• Suitable for home / industry carbon monoxide, coal gas, natural gas, smoke and other harmful monitoring gases detection

• Before use, please heat the board for about 20 seconds