The TM&W-W1209 Digital Temperature Controller Board is a compact, reliable, and highly versatile thermostat module designed for precise temperature monitoring and control in a wide range of DIY, industrial, and automation applications. Supporting both DC 5V and DC 12V power inputs, this controller is ideal for electronics enthusiasts, robotics projects, and professional control systems.

Equipped with a high-precision NTC waterproof temperature sensor, the W1209 can accurately measure temperatures from –50°C to +110°C with fine control resolution. Its built-in relay allows direct switching of high-power devices such as heaters, cooling fans, bulbs, incubators, or refrigeration systems without the need for additional driver circuits.

The bright 3-digit LED display provides real-time temperature readings and makes configuration simple using the onboard tactile buttons. Users can easily set upper and lower temperature thresholds and select between heating mode or cooling mode, enabling automatic control based on environmental conditions.

Thanks to its small form factor and high load capacity, the TM&W-W1209 is widely used in aquariums, incubators, 3D printers, HVAC systems, battery temperature management, DIY thermostats, and smart automation projects. Its robust design ensures long-term stability, making it a dependable choice for both beginners and advanced users.