Dual Color LED Display: This advanced temperature controller module features a dual color LED display, showcasing both the measured temperature in red and the set temperature in blue simultaneously. Ideal for both cooling and heating applications, it allows for precise monitoring in various environments such as indoor or outdoor settings.Versatile Operating Range: With an operating voltage of DC12V 200mA, this controller handles a wide measurement range from -50 to 110 Celsius (-58 to 230 Fahrenheit). The convenient C/F button enables easy switching between Celsius and Fahrenheit, making it adaptable to diverse user preferences and international standards.Waterproof and Durable: Equipped with a waterproof NTC (10K 0.5%) probe, this temperature controller ensures reliable performance in damp conditions. It's perfect for managing temperatures in sensitive environments like fish tanks, incubation fields, and equipment cabinets, offering both heating and cooling controls based on your specific needs.DIY Friendly: This module is ideal for professional temperature control systems but also for DIY projects. Whether you're looking to manage an air conditioning system, a control cabinet cooling system, or any other temperature-sensitive operation, this controller provides the flexibility and accuracy needed for effective temperature managementDescription/Features:This temperature monitoring controller is equipped with a clear indicator system: when the lights are on, the relay is closed; when the lights are out, the relay is disconnected. It features high temperature protection ranging from 0 to 110 degrees Celsius, ensuring safety and reliability in various applications. The controller is designed for easy monitoring and precise temperature control with a refresh rate of 0.5 seconds, making it ideal for a wide range of industrial and domestic uses.Color: BlackMaterial: plasticPackage Contents:2*Temperature ControllerOnly the above package content, other product