{"product_id":"cm2302-dht22-temperature-humidity-sensor-module","title":"CM2302 \/ DHT22 Temperature \u0026 Humidity Sensor Module","description":"\u003cp\u003eCM2302 is a temperature and humidity composite sensor. It uses dedicated digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eCompared 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.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eultra-low power consumption\u003c\/li\u003e\n\u003cli\u003elong transmission distance\u003c\/li\u003e\n\u003cli\u003estandard digital single bus output\u003c\/li\u003e\n\u003cli\u003eexcellent long-term stability\u003c\/li\u003e\n\u003cli\u003ehigh-precision NTC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003etypical accuracy RH: +\/- 2 % RH\u003c\/li\u003e\n\u003cli\u003eoperating range RH: 0 to 99.9 % RH\u003c\/li\u003e\n\u003cli\u003ehumidity response time: 5 sec\u003c\/li\u003e\n\u003cli\u003etypical accuracy temperature: +\/- 0.5 °C\u003c\/li\u003e\n\u003cli\u003eoperating range temperature: -40 to 80 °C\u003c\/li\u003e\n\u003cli\u003einterface: 1 wire\u003c\/li\u003e\n\u003cli\u003esupply voltage: 3.3 to 5.5 VDC\u003c\/li\u003e\n\u003cli\u003esupply current: max 1.5 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eManual\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/vma345a4v01.pdf?v=1623320672\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUser manual\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFirmware\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/vma345_tutorial.zip?v=1623320666\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eVMA345 Tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/vma345_dht_library.zip?v=1623320666\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDHT Library\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Velleman","offers":[{"title":"Default Title","offer_id":39365437653075,"sku":"WPSE345","price":14.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/vma345.jpg?v=1623854478","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/cm2302-dht22-temperature-humidity-sensor-module","provider":"Pimoroni Ltd","version":"1.0","type":"link"}