DHT22 AM2302 Temperature and Humidity sensor

High Precision Capacitive & Thermal Sensing: Utilizes a capacitive humidity sensing element alongside a high-precision NTC thermistor to deliver higher accuracy and broader measuring ranges than entry-level DHT11 modules.

Calibrated Single-Bus Digital Output: Outputs pre-calibrated digital signals across a single bus line, minimizing wiring complexity and saving digital GPIO pins on host microcontrollers.

Extended Temperature & Humidity Measurement Range: Accurately measures ambient temperatures from -40°C to +80°C (-+ 0.5°C accuracy) and relative humidity from 0% to 100% RH (-+ 2% - 5% RH accuracy).

Long Signal Transmission Distance: Optimized signal processing allows digital telemetry transmission over cable runs up to 20 meters with low noise susceptibility.

Compact 4-Pin Package: Features a standard 0.1" pitch 4-pin lead design for easy insertion into breadboards, prototyping sockets, or custom PCB assemblies.

Housing Material: Durable, high-impact ABS plastic white ventilated protective casing with gold-plated connection pins.

Technical Specifications:

Input Power: 3.3V – 5.5V DC.

Temperature Measurement Range: -40^C – +80^C (-+ 0.5^C accuracy).

Humidity Measurement Range: 0% – 100% RH (-+ 2% - 5% RH accuracy).

Data Interface: 1-Wire Single-Bus Digital Signal.

Enclosure Color: White Casing with Silver Pins.

Usage Advice: Place a 4.7 kΩ to 10 kΩ pull-up resistor between the VCC and Data line when connecting to microcontrollers; use standard DHT.h libraries in Arduino IDE or ESPHome.

Maintenance: Keep the grid ventilation slots free of dust, debris, and condensing water droplets to preserve fast response times and long-term accuracy.

Essential High-Accuracy Digital Climate Sensor: Position as the gold-standard, cost-effective digital upgrade over standard DHT11 sensors for weather stations, Home Assistant smart home nodes, and environmental loggers.

Highlight Single-Bus Simplicity & Accuracy: Emphasize its superior temperature/humidity range and simple 1-Wire integration that requires no complex analog signal conditioning.

Recommended Cross-Sell Add-ons: Pair with AM2302/AM2302B Single-bus Digital Temperature & Humidity Sensor, AM2301 (wired DHT21) temperature-humidity sensor, HTU21D Temperature & Humidity Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your core DHT22 digital temperature and humidity sensor element.