The bath thermometer offers a flexible temperature reading range of 0C to 50C Floating swimming pool thermometer made of polypropylene and silicone rubber with smooth surface, safe and reliable This pool thermometer is solar powered with a clear, easy to read digital display The wireless solar thermometer is equipped with a high precision temperature sensor to ensure accurate temperature readings The digital display float thermometer is small in size, light in weight and easy to carry Convenient for monitoring water temperature in baths and outdoor pools. a function Product size: 11.3 x 7.4 x 1.4 cm. Transmitter size: 7.5 * 14 * 2.5cm Floating thermometers are ideal for home swimming pools, hot tubs, pool spas, hot tubs, aquariums and fish ponds. warn: 1. The product does not contain batteries, you need to buy and use it yourself 2. The product uses one AAA (#7) battery (not included)