Features: Swimming Pool Accessories: The portable floating thermometer offers precise water temperature and pleasant time for you, your family and your friends. Range Measurement: This solar digital thermometer has the highest and lowest temperature function, it can measure the temperature from 20+70/-4+158. Solar Powered: Thermometer has a built in battery and is powered by solar energy, just put it in the water and wait for 12 minutes to display the reading. Widely Applicable: Digital solar thermometer can be used to measure water temperature in swimming pools, bathtubs, etc, with accurate measurement. Nice Service: Please contact us when you have any questions about this product, we will try to solve the problem for you as soon as possible. Specifications: Material: Plastic Size: 8*8*13cm 1 *Thermometer