AM2301 (wired DHT21) temperature-humidity sensor

Rugged Shell with Pre-Wired Leads: Encased in a ventilated plastic enclosure equipped with pre-soldered, color-coded lead cables for convenient wall mounting or remote enclosure placement.

Calibrated Composite Digital Output: Combines a capacitive humidity sensor element and an NTC temperature component with an 8-bit microcontroller to deliver pre-calibrated digital telemetry.

Single-Bus Digital Communication: Transmits data across a single digital signal line, saving microcontroller I/O pins for other hardware components and sensors.

Extended Measurement Range & Accuracy: Accurately measures relative humidity across 0% to 100% RH (-+ 3% RH) and temperature from -40°C to +80°C (-+ 0.5°C).

Long-Distance Transmission Capability: Engineered to send digital signals over long lead runs (up to 20 meters) without signal degradation or external signal conditioning hardware.

Housing Material: High-impact ventilated plastic housing with flexible insulated lead wires.

Technical Specifications:

Sensor Type: AM2301 / DHT21 composite digital sensor.

Operating Voltage: 3.3V – 5.2V DC.

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

Humidity Measurement Range: 0% – 100% RH (-+ 3% RH accuracy).

Color: Black Protective Casing with Color-Coded Wires.

Usage Advice: Connect a 4.7 kΩ to 10 kΩ pull-up resistor between the VCC and DATA lines if your host board lacks internal pull-ups; use standard DHT software libraries in Arduino IDE or ESPHome.

Maintenance: Keep the casing ventilation grilles clear of dust, oil residue, and condensing moisture to prevent sensor drift or sluggish response times.

Essential Wired Remote Climate Probe: Position as an easy-to-install, fully enclosed environmental probe for Home Assistant automation, green-house monitoring, and indoor HVAC control.

Highlight Plug-and-Play Wiring Convenience: Emphasize how the pre-wired leads eliminate the need for breadboards, PCB soldering, or custom weatherproofing.

Recommended Cross-Sell Add-ons: Pair with AM2302/AM2302B Single-bus Digital 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 primary wired digital temperature and humidity probe.