Sell KY-015 DHT11 DHT22 DHT-11 Digital Temperature And Relative Humidity Sensor Module for Arduino DIY St best price

DHT11 / MW33: The DHT11/MW33 digital temperature and humidity sensor is a temperature and humidity composite sensor with a calibrated digital signal output. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability. The sensor consists of a resistive wet sensor and an NTC temperature sensor connected to a high performance 8-bit microcontroller. Therefore, the product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability and high cost performance. Each DHT11 sensor is calibrated in an extremely accurate humidity calibration chamber. The calibration coefficients are stored in the OTP memory as a program, and these calibration coefficients are called internally during the processing of the detection signal. The single-wire serial interface makes system integration easy and fast. Ultra-small size, extremely low power consumption, and signal transmission distances of up to 20 meters make it the best choice for even the most demanding applications. The product is available in a 4-pin single-row lead package. Product Features: Relative humidity and temperature measurement All calibration, digital output Excellent long-term stability No extra parts required Extra long signal transmission distance Ultra low energy consumption 4-pin mounting Completely interchangeable DHT22: Product parameters: Humidity measurement range: 0% to 99.9% (0°C-50°C range) Humidity measurement error: ±2% Temperature measurement range: -40 ° C ~ 80 ° C Temperature measurement error: ±0.5°C max ±1°C Resolution: 16 bits Sampling period: 2s Working voltage: 3V--5.5V