AM2302/AM2302B Single-bus Digital Temperature & Humidity Sensor

Calibrated Single-Bus Digital Output: Transmits accurate digital signal outputs over a single-wire interface, requiring minimal microcontroller pin overhead.

Capacitive Humidity & NTC Thermal Sensing: Combines a polymer capacitive sensor element for relative humidity with an NTC temperature element for reliable composite environmental readings.

Pre-Wired Protective Enclosure: Housed in a durable, ventilated plastic shell equipped with pre-soldered insulated lead wires for quick installation without custom PCB soldering.

Extended Measurement Range & Accuracy: High-performance sensor architecture measures humidity across 0% – 100% RH (-+ 2% RH) and temperature from -40^C to +80^C (-+ 0.5^C).

Long-Distance Signal Transmission: Designed to send digital telemetry reliably over lead cable runs up to 20 meters with minimal signal loss.

Enclosure Material: Durable ABS plastic ventilated housing with pre-wired insulated cable leads.

Technical Specifications:

Sensor Element: AM2302 / AM2302B (wired DHT22 equivalent).

Operating Voltage: 3.3V – 5.5V DC.

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

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

Color: White Casing with Color-Coded Lead Wires.

Usage Advice: Connect a 4.7 kΩ – 10 kΩ pull-up resistor between the VCC and DATA lines if using non-buffered microcontroller IO pins.

Maintenance: Ensure airflow vents remain unblocked by dust or debris, and avoid exposing the housing directly to condensing moisture or corrosive gas environments.

Essential Enclosed Climate Sensor: Position as a higher-accuracy, pre-housed upgrade to basic DHT11 modules, ideal for Home Assistant smart home setups, greenhouse climate tracking, and HVAC automation.

Highlight Wired Convenience: Emphasize how the pre-wired leads and plastic mounting case allow for instant wall or enclosure mounting without custom soldering.

Recommended Cross-Sell Add-ons: Pair with AM2301 (wired DHT21) temperature-humidity sensor, AM2302 (DHT22) Temp & Humidity Sensor, DHT11 Temperature & Humidity Sensor Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

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