{"title":"AM2301B - Wired Enclosed AHT20 - Temperature and Humidity Sensor","handle":"am2301b-wired-enclosed-aht20-temperature-and-humidity-sensor","url":"/products/am2301b-wired-enclosed-aht20-temperature-and-humidity-sensor","description":"The AM2301B is an affordable enclosed temperature and humidity sensor featuring an I2C interface — a modern upgrade over the classic DHT22/AM2302 sensors that required bit-bang timing protocols. Inside is the proven AHT20 sensor, delivering reliable readings over standard I2C with support for 2.5V to 5.5V power, making it compatible with both 3.3V and 5V microcontrollers.\n\nWith built-in pull-up resistors and a wired enclosed housing, this sensor is ready to connect directly to any Arduino or Raspberry Pi. Take readings as often as you like with no timing-critical protocol to worry about — just simple I2C communication.\n\nKey Features\n\n\nI2C Interface – Standard I2C communication, no bit-bang timing protocol needed\n\nWide Voltage Range – 2.5V to 5.5V, compatible with 3.3V and 5V logic\n\nBuilt-In Pull-Ups – Ready to connect with no external resistors required\n\nEnclosed Wired Design – Protected sensor in a compact housing with lead wires\n\nAHT20 Sensor Inside – Proven, reliable temperature and humidity sensing\n\n\nSpecifications\n\n\nSensor – AHT20\n\nInterface – I2C (single address)\n\nSupply Voltage – 2.5V to 5.5V\n\nHumidity Accuracy – ±2% RH (typical, at 20–80% RH)\n\nTemperature Accuracy – ±0.3°C (typical, at 20–60°C)\n\nHousing – Non-waterproof wired enclosed shell\n\n\nIdeal For\n\nIoT environmental monitoring\nHome automation and climate control\nWeather stations and data logging\nArduino, Raspberry Pi, and CircuitPython projects\n\n\n\nNote: This sensor has only one I2C address, so it is not suitable for projects requiring multiple humidity sensors on the same bus.\n\n\nPackage Contents\n\n1× AM2301B Wired Enclosed Temperature and Humidity Sensor\n\n\nResources\n\nAdafruit AHT20 Guide (library code, datasheet, and more)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":2908,"title":"Default Title","sku":"AF-5181","price":16.82,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}