Product Specifications /Features

MQ-135 gas sensor has high sensitity to Ammonia, Sulfide and Benze steam, also sensitive to other harmful gases. It is with low cost and suitable for different application.
Sensor Type: Semiconductor
Standard Encapsulation: Bakelite (Black Bakelite)
Detection Gas: Ammonia, Sulfide, Benze
Concentration: 10-10000ppm(Ammonia, Benze, Hydrogen)
Circuit Loop Voltage Vc: ≤24V DC
Heater Voltage VH: 5.0V±0.2V AC or DC
Load Resistance RL: Adjustable
Character Heater Resistance RH: 31Ω±3Ω(Room Tem. )
Heater consumption PH: ≤900mW
Sensing Resistance Rs: 2KΩ-20KΩ(in 100ppm NH3 )
Sensitivity S: Rs(in air)/Rs(100ppm NH3)≥5
Slope α: ≤0.6(R100ppm/R50ppm NH3)
Condition: Tem. 20℃±2℃; Humidity 65%±5%RH
Standard test circuit: Vc: 5.0V±0.1V;
VH: 5.0V±0.1V
Preheat time: Over 48 hours

Competitive Advantages

Well and High Quality Control , 
Prompt Delivery , 
Competitive Prices , 
Small Order Acceptable