MQ-135 Air Quality Gas Sensor Module

Specification: The MQ-135 is a semiconductor-based gas sensor designed to detect a wide range of gases, including ammonia, sulfides, benzene, smoke, and CO2. In a laboratory setting, it is primarily used for environmental monitoring, air quality assessment, and as a low-cost detector for volatile organic compounds (VOCs).

Technical Specifications:
* Target Gas: Ammonia, Nitrogen Oxides, Smoke, CO2, Benzene
* Detection Concentration: 10 – 1000 ppm
* Heater Voltage (VH): 5.0V ± 0.2V (AC/DC)
* Loop Voltage (VC): ≤ 24V DC
* Load Resistance (RL): Adjustable
* Heater Resistance (RH): 31Ω ± 3Ω
* Heater Consumption: ≤ 800mW
* Sensing Resistance (RS): 30kΩ – 200kΩ (in 100ppm NH3)
* Operating Temperature: -10°C to 50°C
Dimension: 20x32x22mm
Package: 86*92mm
Weight: 8gm