DHT22 Temp and Humidity sensor (with cable)

The DHT22 Temperature and Humidity Sensor Module is a reliable and accurate digital sensor designed for environmental monitoring applications. Based on the DHT22 (also known as AM2302) capacitive humidity sensor, this module provides precise temperature and humidity readings with a simple digital interface. Perfect for hobbyists, educators, and professionals, this sensor is ideal for weather stations, climate control systems, home automation projects, and any application requiring environmental data logging.

Key Features:

• Complete Module: Includes DHT22 sensor mounted on a PCB with pull-up resistor and connection cable with pre-crimped Dupont connectors for easy interfacing.
• Digital Output: Single-wire digital interface simplifies connection to microcontrollers including Arduino, Raspberry Pi, ESP8266, and ESP32.
• Plug-and-Play Connectivity: Supplied with 3-wire connection cable (VCC, Data, GND) terminated in female Dupont connectors for breadboard and development board compatibility.
• Power Supply: Operates on 3.3V to 5.5V DC, making it compatible with both 3.3V and 5V logic systems.
• Low Power Consumption: Typical current draw of 1-1.5mA during measurement, with standby current as low as 40-50µA.
• White Protective Housing: Sensor element enclosed in white perforated plastic housing for protection whilst allowing air circulation.
• On-Board Components: PCB features pull-up resistor and filtering capacitor for stable operation.
• High Accuracy Humidity Measurement: ±2% RH accuracy (at 25°C) with measurement range of 0-100% RH and 0.1% RH resolution.
• Precise Temperature Measurement: ±0.5°C accuracy with measurement range of -40°C to 80°C and 0.1°C resolution.
• DHT22/AM2302 Sensor: Calibrated digital temperature and humidity sensor with excellent long-term stability.
• Sampling Rate: Maximum sampling rate of 0.5Hz (one reading every 2 seconds).
• Operating Voltage Range: 3.3V to 5.5V DC.
• Output Signal: Digital signal via single-bus communication protocol.
• Compact PCB: Small form factor module approximately 15mm x 25mm, suitable for integration into confined spaces.

Applications

• Weather Stations: Build personal weather monitoring systems with accurate temperature and humidity logging.
• Home Automation: Integrate into smart home systems for climate monitoring and HVAC control.
• Educational Projects: Excellent for teaching sensor interfacing, data acquisition, and environmental science concepts.
• IoT Devices: Deploy in Internet of Things applications for remote environmental monitoring and data collection.
• Agriculture and Greenhouses: Monitor growing conditions in indoor farming, greenhouses, and hydroponic systems.

Why Choose the DHT22 Temperature and Humidity Sensor Module? The DHT22 offers an outstanding balance of accuracy, reliability, and ease of use at an accessible price point. Its calibrated digital output eliminates the need for complex analogue signal conditioning, whilst the included connection cable makes integration straightforward even for beginners. With extensive library support across popular platforms and a proven track record in countless projects worldwide, the DHT22 is the go-to choice for anyone needing dependable environmental sensing.