The DHT11 Temperature and Humidity Sensor Module is a reliable, low-cost digital sensor designed to measure ambient humidity and temperature. It is ideal for Arduino, Raspberry Pi, smart home DIY, environmental monitoring systems, and STEM education projects. Featuring stable performance, built-in digital output, and a compact size with mounting holes, this module is easy to integrate into various electronics projects. Key Features Measures both temperature and relative humidity Digital output signal for easy MCU integration High reliability with long-term stability Compact design with 3mm mounting hole for quick installation Ideal for Arduino, Raspberry Pi and other microcontroller projects Specifications Item Details Sensor Model DHT11 Humidity Range 20% – 90% RH Humidity Accuracy ±5% RH Temperature Range 0°C – 50°C Temperature Accuracy ±2°C Operating Voltage 3.3V / 5V DC Output Type Digital signal Module Size 28 × 12 × 8 mm Wiring Guide VCC → 3.3V / 5V power GND → Ground DATA → Microcontroller I/O pin (with internal pull-up resistor)