Real-time monitoring: with this water shower thermometer, allows you to always shower with the right water temperature, no more worrying about hot or cold showers High precision: built-in temperature sensor high precision, providing Measuring range 5-85C / 41-185F and accuracy + - 0.5C / 32.9f. Selectable Celsius / Fahrenheit display. No battery and no power required: Built-in electric generator, self-generating power supply, no batteries required. With 1/2 inch nut, compatible with most shower equipment. Easy to read: 360 degree rotatable design, LED display and 3 color (blue / green / red) indicator light, it is convenient for you to see the temperature from any angle. Timer function: Designed with a timer, which allows you to set the time to 0-99: 59, saving energy and protecting the environment, suitable for families with infants, toddlers or the elderly. Real-time monitoring: with this water shower thermometer, allows you to always shower with the right water temperature, no more worrying about hot or cold showers High Accuracy: Built-in high precision temperature sensor, providing Measuring range 5-85C / 41-185F and accuracy + - 0.5C / 32.9f. Selectable Celsius / Fahrenheit display. No battery and no power required: Built-in electric generator, self-generating power supply, no batteries required. With 1/2 inch nut, compatible with most shower equipment. Easy to read: 360 degree rotating design, LED display and 3 color (blue / green / red) indicator light, it is convenient for you to see the temperature from any angle. Timer function: Designed with a timer, which allows you to set the time to 0-99: 59, energy saving and environmental protection, suitable for families with infants, all- small or old people. Specifications: Material: ABS + PC electroplating Size: 8.1 x 8.06 x 3 cm / 3.19 x 3.17 x 1.18 inch Packing size: 12 x 10.5 x 3.5cm / 4.72 x 4.13 x 1.38 inch Measuring range: 5-85C / 41-185F Nut specifications: 1/2 inch Note: Due to manual measurement, there may be little deviations. Packing: 1 x Shower water thermometer 1 x waterproof washer 1 x user manual