CM2302 / DHT22 Temperature & Humidity Sensor Module

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CM2302 is a temperature and humidity composite sensor. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliab ility and excellent long-term stability. The sensor includes a capacitive wet sensor and a high-precision NTC temperature sensor connected to a high-performance 8-bit microcontroller, ensuring the product's excellent quality, fast response, anti-interference ability and cost efficiency. Each sensor is being calibrated in a highly accurate humidity calibration room. Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive. Features ultra-low power consumption long transmission distance standard digital single bus output excellent long-term stability high-precision NTC Specifications typical accuracy RH: +/- 2 % RH operating range RH: 0 to 99.9 % RH humidity response time: 5 sec typical accuracy temperature: +/- 0.5 °C operating range temperature: -40 to 80 °C interface: 1 wire supply voltage: 3.3 to 5.5 VDC supply current: max 1.5 mA Manual User manual Firmware VMA345 Tutorial DHT Library Show more