MQ-135 Air Quality Testing Sensor Module

SKU: 180859

13.24 11.91 Piece 11.91 USD

¥ 93.50

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Parameters: 

  • The heating voltage: 24V ± 0.2V (AC · DC) 

  • Working current: 150mA 

  • Loop voltage: ≤DC15V (maximum DC15V) 

  • The output voltage: Default 0-10V (resistance than the corresponding concentration of output) selectable 0-5V 

  • Load resistance: 1K (adjustable) 

  • Detection concentration range: 10-1000ppm (different gas concentration range different) 

  • Clean the air Voltage: ≤1.5V 

  • Sensitivity: ≥3% 

  • Response time: ≤1S (preheat 3-5 minutes) 

  • Response time: ≤30S 

  • Component Power: ≤1W 

  • The working temperature: -10 ~ 50 oC (nominal temperature 20 oC) 

  • Humidity: 95% RH (nominal humidity 65% RH) 

  • Life: 5 years 

  • Size: 65mm X 45mm X 40mm 

  • Weight size: 40g 

Features 

  • With analog signal output; 

  • The output signal range can be adjusted, optional 0-5V / 0-10V (default), the output signal can be connected to PLC, etc; 

  • Corresponding analog output voltage changes, the higher the concentration, the higher the voltage; 

  • Liquefied petroleum gas, butane, methane, smoke, etc. have better sensitivity; 

  • Long life, good stability; 

  • With a rapid response recovery characteristics 

The output is non-linear, only take a value in the range of 0-10V. Because the sensor is a semiconductor sensor, The sensor will output approximately 1-3V when no gas is detected, as the actual output to prevail. 

The output is non-linear, only take a value in the range of 0-5V. Because the sensor is a semiconductor sensor, The sensor will output approximately 0.5-1.5V when no gas is detected, as the actual output to prevail.