Description: Can detect the temperature of the surrounding environment The sensitivity is adjustable (blue digital potentiometer adjustment) Working Voltage: 3.3V-5V Output Form: a. Analog voltage output; b. Digital switching output (0 and 1) Fix bolt holes for easy installation Onboard power indicator and digital switch output indicator Small PCB Board Size: 3 x 1.6 cm/1.2 x 0.63 inch Specification: Interface Description 1. VCC connect to 3.3V-5V 2. GND connect to GND 3. DO digital output interface (0 and 1) 4. AO analog output interface Instructions 1. Thermistor module is generally used to detect the temperature changes of the surrounding environment 2. When the module can't reach to the temperature set threshold value, the DO port outputs high level. When the outside temperature exceeds the set threshold, the module DO outputs low level 3. Module digital output DO can directly connect to the microcontroller, detect high and low level through the microcontroller, thereby detecting the temperature changes of environment 4. The module analog output AO can connect to the AD module. It can obtain a more accurate value of temperature through AD conversion Package Includes: 5 Pieces Thermal Sensor Module