DHT11 Temperature & Humidity Sensor

Calibrated Composite Digital Output: Combines a resistive relative humidity sensing component and an NTC thermistor with an 8-bit microcontroller to output pre-calibrated digital signals.

Single-Bus Digital Interface: Transmits data using a simplified 1-Wire interface, conserving valuable GPIO pins on host microcontroller boards.

Low Power & Wide Supply Voltage: Operates efficiently between $3.0\text{V}$ and $5.5\text{V}$ DC power, making it fully compatible with 3.3V and 5V logic systems.

Compact 4-Pin Lead Package: Standard 0.1" (2.54mm) pitch 4-pin arrangement for easy breadboard insertion or PCB soldering.

Reliable Anti-Interference Performance: Offers strong anti-interference capabilities and fast response times for basic environmental sensing routines.

Housing Material: Blue ABS plastic ventilated protective shell with gold-plated male terminal legs.

Technical Specifications:

Input Power: 3.0V – 5.5V DC.

Temperature Measurement Range: 0°C – +50°C (-+ 2°C accuracy).

Humidity Measurement Range: 20% – 90% RH (-+ 5% RH accuracy).

Communication Protocol: Single-bus Digital Signal.

Color: Blue Casing with Metallic Lead Pins.

Usage Advice: Add a standard 4.7 kΩ - 10 kΩ pull-up resistor between VCC and DATA lines when connecting directly to standalone microcontrollers; use DHT.h libraries in Arduino IDE or ESPHome for quick integration.

Maintenance: Keep the central ventilation grid clear of dust and debris, and avoid using the sensor in condensing moisture or harsh solvent gas environments.

Essential Entry-Level Climate Sensor: Position as the ultimate entry-level digital temperature and humidity sensor element for electronics hobbyists, STEM students, and beginner DIY projects.

Highlight Low Cost & Single-Pin Simplicity: Emphasize how the single-bus digital output eliminates the need for complex analog-to-digital conversions on host boards.

Recommended Cross-Sell Add-ons: Pair with DHT11 Temperature & Humidity Sensor Module, DHT11 Temperature And Humidity Sensor Module with Cable, AM2302 (DHT22) Temp & Humidity Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your standard standalone DHT11 sensor element.