The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed).
Technical Specifications
- Operating Voltage: 3.5 V to 5.5 V
- Operating current: 0.3 mA (measuring), 60 uA (standby)
- Output: Serial data
- Temperature Range: 0°C to 50°C
- Humidity Range: 20% to 90%
- Resolution: Temperature and Humidity both are 16-bit
- Accuracy: ±1°C and ±1%
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MQ-135 Air Quality Sensor
- High sensitivity to Ammonia, Sulphide and Benzes
- Stable and Long Life
- Detection Range: 10 – 300 ppm NH3, 10 – 1000 ppm Benzene, 10 – 300 Alcohol
- Heater Voltage: 5 V
- Dimensions: 18 mm Diameter, 17 mm High excluding pins,Pins – 6 mm High
- Long life and low cost
- Domestic air pollution detector
- Industrial air pollution detector
- Portable air pollution detector
SKU: STEM18077
