Features: The WX101W DC12V Temperature Controller features a high precise Probe ( -40℃ to 120℃), LED digital display, and waterproof probe for accurate temperature monitoring and automatic load control. Equipped with a durability waterproof sensors probe and intuitively button interfaces, this compact module enables easy temperature parameter adjustments while maintaining stable performances in humid environment. Ideal for aquarium enthusiasts, greenhouse operators, industrial technicians, and electronics hobbyists requiring reliability thermal management solution. Seamlessly integrates into aquatic tanks, climate controlled storage units, industrial machinery, and home appliances to maintain optimal temperature conditions. Engineered with low voltages DC12V PCB design, this temperature controller switching module ensures safe operate and effortless installation across multiple temperature sensitive applications. Specifications: Component: PCB Size:Approx.49x40mm/1.93x1.57inch Working voltages: DC12V Temperature detection ranges: -40~120℃ Applicable scenario:Aquarium Management,gricultural Greenhouse， Package Includes: 1pc Temperature Controller Switching Module note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.