Features: Premium Quality: The pool thermometer is made from reusable ABS material that is shatter resistant, so you can reuse it for a long time. QuickReading: It floats on water& 39;s surface for easy access and quick readings. Floating temperature gauge displays temperature in both Fahrenheit and Celsius. Accurate Reading: The pool thermometer floating easy read is with high-precision temperature sensor which ensures an accurate temperature readout. Swimming Pool Accessories: The portable floating thermometer offers precise water temperature and pleasant time for you, your family and your friends. After-sales Service: If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specifications: Material: ABS Thermometer Testing Range:-9.9~+5014.2~122 SensorTesting Range:-40~+70-40~158 Thermometer Battery:2 x 1.5V AAA Battey (Not Included) SensorBattery:2 x 1.5V AAA Battey (Not Included) Notes: Please note that due to the influence of light and screen, slight chromatic aberration is acceptable. Please allow slight measurement error due to manual measurement. 1 *Thermometer 1 * Sensor 1 * Lanyard 1 *Instruction Book