Air Quality Sensor for Compatible + Video

Description: MQ135 adopts SnO2 as its gas sensitive material because SnO2 has low electrical conductivity in the clean air. So when surrounded by polluted air, the electrical conductivity of MQ135 will increase with the increase of pollutants, and the change in electrical conductivity can be converted to corresponding output signal. MQ135 has a high sensitivity to Ammonia, sulfide, benzene vapor, smoke and other harmful gas. It can detect various harmful gases, making it a cost-effective choice suitable for multiple applications. Target gas: Ammonia; methylbenzene; hydrogen Product type: Semiconductor gas sensor Specification: Product model: MQ135 Standard Package: Bakelite (Black Bakelite) Target gas: Ammonia; methylbenzene; hydrogen Standard circuit: Loop voltage Vc ≤24V DC Heater voltage: VH 5.0V±0.2V AC or DC Load resistance: Adjustable RL Features of sensitive components under standard test condition: Heating resistor RH 31&;±3&; (room temperature) Heater power consumption: PH ≤900mW Surface resistance of sensitive material: Rs 2K&;-20K&;(in 100ppm NH3) Sensitivity: S Rs(in air)/Rs(100ppmNH3)≥5 Concentration slope: α ≤0.6(R100ppm/R50ppm NH3) Standard testing temperature/humidity : 20℃±2℃/65%±5%RH Standard testing circuit: Vc:5.0V±0.1V VH: 5.0V±0.1V Preheating time: ≧48H Package Includes: 1x MQ135 Air Quality Sensor for Giá sản phẩm trên Tiki đã bao gồm thuế theo luật hiện hành. Bên cạnh đó, tuỳ vào loại sản phẩm, hình thức và địa chỉ giao hàng mà có thể phát sinh thêm chi phí khác như phí vận chuyển, phụ phí hàng cồng kềnh, thuế nhập khẩu (đối với đơn hàng giao từ nước ngoài có giá trị trên 1 triệu đồng).....