LED Water Temperature Bathtub Thermometer Shower Celsius/Fahrenheit Display Sensor Hotel Baby Bathroom Monitor MeterFeature:On the LED display, you can see the water temperature clearly even in the dark. Rotatable Design - The screen can rotate 360.Safe to use - You only need 2 * AAA batteries (excluding it). Convenient and quick installation, no need for any tools and only need to be tightened by hand when used with the handheld shower head. High-precision temperature sensor-real-time monitoring of shower temperature. Temperature switching-Switch between Celsius and Fahrenheit. Elegant and fashionable design--High quality, and even suitable for all five-star hotels. Specification: Operating Temperature: 5 C - 60 C Operating Voltage 5%-80% RH Rated Voltage: 3VAlow Voltage Larm: 1.6v Nut Specification: 1/2 inch of National Standard Temperature Range: 5 C-85 C (41 F-185 F). Measurement error: 0.5 C (1 F)Measurement accuracy: 0.5 C(1 F). Material: ABS (Electroplating), PCDeach: 103*90mm/4.1x3.5inNote: Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Please allow 1-2cm measurement deviation due to manual measurement.1 x Water Thermometer