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Principle Introduction
The sensing material of MEWOI-MIX1011 is tin dioxide SnO2, which has low conductivity in clean air. When the contaminants gas exists, the conductivity of the sensor will be raise according to the gas concentration goes up. Through a simple circuit, to convert the changes of conductivity to correspond to the gas concentration. MEWOI-MIX1011 Air quality Detection Sensor has high sensitivity to smoke, alcohol, iso-butane, methanol etc VOCs. It has quick response and resume; low power consumption, simple detection circuit, good stability and long life. |
Features
High sensitivity to TVOC Low cost, long life Low power consumption Good stability Simple application circuit |
Application
Air purifier HAVC refrigeration Indoor air quality monitoring Intelligent integrated ceiling Range hood, air conditione |
Technical Parameters
| Item | Specification |
| Target Gas | Alcohol, smoke, iso-butane, methanal |
| Heater Voltage(VH) | 5V±0.1V AC or DC |
| Loop Voltage | ≤24V DC |
| Heater Resistor(RH) | 55Ω±3Ω(Room Temp.) |
| Power consumption(PH) | ≤400mW |
| Sensitivity | RS(in air)/RS(50ppm alcohol)≥ 5 |
| Concentration Slope | ≤0.6 (R100ppm/R30ppm alcohol) |
| Testing condition | 20±2℃, 65%±5%RH |
| Oxygen concentration in used place | 21%, no less than 18% If used in low oxygen concentration, pleasure contact for detail |
| Life Expectancy | 10 years |
