The Gravity: DHT22 Temperature & Humidity Sensor (SEN0137) is a high-precision digital sensor designed for reliable environmental monitoring. Featuring a capacitive humidity sensing element and an integrated NTC temperature sensor, this DHT22 sensor provides calibrated digital output with ±0.5°C temperature accuracy and ±2%RH humidity accuracy. Ideal for Arduino, Raspberry Pi, and ESP32 platforms, this temperature and humidity sensor is compact, low-power, and capable of transmitting signals over distances up to 20 meters. As a reliable digital hygrometer, it is perfect for HVAC, meteorology, smart agriculture, medical devices, and IoT applications. Projects Project 1: Environmental Monitoring System Based on OBLOQ-IoT ModuleThis product is mainly applied in electronic laboratory to monitor and control indicators such as temperature, humidity, light and dust using a DHT22 sensor, and timely upload them to the cloud data space to achieve remote monitoring and control of dehumidifier, air purifier, exhaust fan and dimmable light, etc. in the laboratory. Project 2: The Ultimate IoT Sensor Box for Smart Offices and Buildings Introduction: Improve your flex desk office experience with this innovative IoT sensor box featuring a temperature and humidity sensor Key Features High accuracy: ±0.5°C temperature, ±2%RH humidity with this DHT22 sensor Wide temperature range: -40°C to 80°C for environmental monitoring Humidity range: 0–100%RH digital hygrometer performance Digital signal output (single-bus communication) for ESP32 sensor projects Gravity-digital interface, supports Arduino humidity sensor and compatible controllers Low power consumption: 1.5mA for IoT temperature and humidity sensor devices Good long-term stability and reliability in every DHT22 sensor Anti-interference performance and fast response time for weather data Usable with analog ports as digital signal interface for Arduino humidity sensor use Applications HVAC systems and dehumidifiers using a precise digital hygrometer Smart agriculture and greenhouse monitoring with a DHT22 sensor Medical equipment and meteorological stations with temperature and humidity sensor tech IoT devices and weather data collection for ESP32 sensor platforms Environmental control systems and smart homes via Arduino humidity sensor integration Specifications Model: SEN0137 DHT22 sensor Operating Voltage: 5V temperature and humidity sensor Current Consumption: 1.5mA Temperature Range: -40°C to +80°C Temperature Accuracy: ±0.5°C Temperature Resolution: 0.1°C Humidity Range: 0–100%RH Humidity Accuracy: ±2%RH Humidity Resolution: 0.1%RH Interface: Gravity-digital, single-wire output temperature and humidity sensor signal Wiring: VCC (red), GND (black), Signal (yellow) Module Size: 38 × 20mm (1.50 × 0.79 inches) Sensor Size: 22 × 32mm Package Includes 1 × DHT22 Temperature & Humidity Sensor 1 × Gravity Digital Sensor Cable
