Accurate Temperature and Humidity Detection: This humidity module is designed to measure the temperature and humidity of the surrounding environment accurately, providing reliable data for your projects High-Quality Sensor: The module features a high-quality sensor, which is known for its accuracy and reliability Wide Measurement Range: The humidity measurement range of this module is between 20%-95% (within 0°C-50°C), with an error range of ±5%. The temperature measurement range is between 0°C-50°C, with an error range of ±2°C Easy to Use: This module is easy to use, featuring a three-wire interface that connects to your microcontroller or other devices quickly and easily Compact and Convenient Design: With its small size of 32x14x5mm, built-in bolt holes, and red LED power indicator light, this humidity module is easy to install and ideal for a wide range of electronic projects Usage: Temperature Sensor Can detect the humidity and temperature of the surrounding environment Working voltage 3.3V-5V Output form digital output With fixed bolt holes, easy to install Power indicator (red) Module interface description (3-wire system) VCC: external 3.3V-5V GND: external GND DO: small board switch digital output interface connected to the microcontroller IO port Color: As Shown Material: PCB Package Contents: 10 x Temperature Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.