ITEM NAME:5pcs KY-028 Digital Temperature Thermistor Thermal Sensor Module Switch Kit #gib Product Description Description: 5pcs KY-028 Digital Temperature Thermistor Thermal Sensor Module Switch Board DIY Starter Kit Feature: 1. Using NTC thermistor sensor, the sensitivity is good. 2. The output signal of the clean waveform comparator is good, and the driving capacity is 15mA. 3. Adjusting Temperature Detection Threshold of Distribution Bit. 4. With holes, easy to install. 5. Using Wide LM393 Voltage Comparator. Specification: Working Voltage: 3.3V-5V Output Format: Digital Output Switching (0 and 1) Size: 40*14*13mm/1.57*0.55*0.51'' Note: Please allow 1-3cm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 5 x Digital Temperature Sensor Modules.Using NTC thermistor sensor, the sensitivity is good. Output Format: Digital Output Switching (0 and 1). Included: 5 x Digital Temperature Sensor Modules. The output signal of the clean waveform comparator is good, and the driving capacity is 15mA.