MQ135 MQ-135 Air Quality Sensor Module DC 5V 10-1000ppm Ammonia Gas Sensor Module Detector for Arduino
محصولات مرتبط
For home, environmental harmful gas detection apparatus suitable for the detection of ammonia, an aromatic compound, a sulfide, benzene vapor, smoke and other gases harmful gases, the gas-sensitive element test concentration range: 10 to 1000 ppm
1, using high-quality double-sided design, has a power indicator and TTL signal output instructions;
2, with the DO switch signal (TTL) output and AO analog output;
3, TTL output valid signal is low. (When the low output signal light can be directly connected to the microcontroller or relay module)
4, the analog output voltage, the higher the concentration the higher the voltage.
5, air quality, hazardous gas detection with better sensitivity.
6, there are four screw holes for easy positioning;
7 Product Dimensions: 32 (L) * 20 (W) * 22 (H)
8, with a long service life and reliable stability
9, rapid response and recovery characteristics
Input voltage: the DC5V power consumption (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output :0.1-0 .3 V (relatively clean), the maximum concentration of about 4V voltage
Special note: after power is applied to the sensor, you need to warm up about 20S, the stability of the measurement data, the sensor fever is a normal phenomenon, because the internal heating wire, hot is not normal.
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