Temperature control range: 50 C to +110 C (58 F to +230 F), enabling precise temperature management for a variety of applications. Intelligent control: powered by a precision remote temperature sensor, the W1209 automatically controls power to coolers, heaters, or fans based on the detected temperature, with on/off set point programming for effective regulation. Userfriendly configuration: no programming knowledge required. An embedded microcontroller and tactile switches allow easy configuration of parameters, including trigger temperatures, to tailor the thermostat to specific needs. Reliable performance: housed in a clear acrylic plastic enclosure, it features an onboard relay with a maximum switching capacity of 14V DC 20A, 24V DC 16A, or 125V AC 7A. The current temperature is displayed on a threedigit sevensegment display, and the relay status is indicated by an onboard LED. Use scenarios: Maintain a stable temperature in a compact refrigeration or cooling box by controlling a cooler. Regulate incubation or germination environments by switching heaters or fans to hold a target temperature. Enclose electronics, 3D printers, or small equipment cabinets to keep the internal environment within required limits using a heater, cooler, or fan as needed.