Build your own temperature controller with this DIY electronic kit. Perfect for hobbyists, students, and electronics enthusiasts, this kit provides all the components needed to assemble a functional thermostat and digital thermometer from scratch. It’s an excellent way to learn about temperature control systems while gaining hands-on soldering and assembly experience. Parameters Kit Name: Temperature Controller Kit Model: YDT-1 Voltage: 7V–12V DC Measurement Accuracy: 0.1°C Measurement Range: 0–100°C External Control Voltage: 4V Note: You can separately set the high-limit alarm temperature and low-limit alarm temperature. When the current temperature exceeds the high-limit alarm value, the buzzer will sound, the current temperature reading will flash, the red LED will light up, and the high-limit alarm will output 4V. When the current temperature falls below the low-limit alarm value, the buzzer will sound, the current temperature reading will flash, the green LED will light up, and the low-limit alarm will output 4V. The external control device can connect to fans or electric heaters via a relay.