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- Sensitivity: check it
- Measuring Range: check it
- Type: Non Heating Type
- Linear: check it
- Resolution: check it
- Sensor Type: Holzer
- Hysteresis: check it
- Brand Name: MILONT
- Repeatability: check it
- working principle: Gas sensor
Product Details ? MQ135 air pollutionThe gas-sensitive material used is tin oxide (SnO2) with a low conductivity in clean air. When there is a contaminant gas in the environment where the gas sensor is located, the conductivity of the sensor increases as the concentration of contaminant gases in the air increases. The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. MQ135 air pollutionIt is highly sensitive to ammonia, sulfide and benzene, and is ideal for the monitoring of smoke and other harmful gases. This sensor can detect a variety of harmful gases, is a variety of applications for low-cost sensors. ? Sensor characteristics ? On the ammonia, sulfide, benzene and other atmosphere higher sensitivity Long life, low cost Simple drive circuit can be ? main application ? Household air pollution alarm Industrial air pollution alarm Portable air pollution detector ? Technical indicators ? Product number | MQ135 air pollution sensor | product type | Semiconductor gas sensor | Standard package | Bakelite | Detection of gas | Ammonia, sulfide, benzene vapor | Detection of concentration | 10-1000 ppm (ammonia, toluene, hydrogen) | Standard circuit conditions | Circuit voltage | Vc | ¡Â24V DC | Heating voltage | VH | 5.0V ¡¾ 0.2V ACorDC | Load Resistance | RL | Adjustable | Characteristics of Gas Sensors under Standard Test Conditions | Heating resistance | RH | 31¥Ø ¡¾ 3¥Ø (room temperature) | Heating power consumption | PH | ¡Â900mW | Sensitive body surface resistance | Rs | 2K¥Ø-20K¥Ø (in 100ppm NH3) | Sensitivity | S | Rs (in air) / Rs (100 ppmNH3) ¡Ã5 | Concentration slope | ¥Á | ¡Â0.6 (R100ppm/ R50ppmNH3) | Standard test conditions | temperature humidity | 20 ¡Æ C ¡¾ 2 ¡Æ C; 65% ¡¾ 5% RH | Standard test circuit | Vc: 5.0V ¡¾ 0.1V; VH: 5.0V ¡¾ 0.1V | Warm up time | Not less than 48 hours |
Note: Product parameters are subject to change without notice
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