Features: High precise digital thermometers with waterproof stainless steel probe delivers ±0.1℃ accuracy across -50℃~125℃ ranges , ideal for aquarium monitoring and industrial applications requiring reliability temperature sensors. compactly miniture design integrates a bright LCD display and corrosions resistant probe, powered by wide DC4-28V input for flexible installation in confined space like HVAC systems or greenhouse control panels. Essential tool for aquaculture professional, laboratory technicians, and electronics engineers needing instantly temperature feedbacks in liquid environment or precise critical equipment maintenance scenario. Waterproof construction withstands submersion up to 1meter depth, making it perfect for fish tanks temperature tracking, outdoor weather stations, and food processing facilities requiring durability measurement devices. Combines rapid response sensors technology with metal housing for 24/7 operate in extreme conditions, serving as a versatile solution for automated climate controller systems and scientific research instrumentation. Specifications: Component: PCB, PVC, Metal Size: Approx.22x10mm/0.86x0.39inch Wire length:Approx.1meter/39.37inch Option Display Color: Red Green Blue White Yellow Supply voltages: DC4-28V Temperature detection ranges: -50℃~125℃ Applicable scenario:Greenhouse farming; Package Includes: 1pc Digital Temperature Meter 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.