Features: 1Excellent Material: Pool thermometer is made of reliable ABS material, which is durable, anti oxidant, and has a long life span, suitable for indoor and outdoor use. 2Digital Swimming Pool Thermometer Floating: The digital swimming pool thermometer has a high accuracy temperature sensor to ensure accurate temperature readings. The temperature range tested is approximately ?40 to +60. 3Easy to Use: Put the floating pool thermometer directly into the water and wait for 1 to 2 minutes to read the degree. The thermometer displays the temperature in Fahrenheit and Celsius, and the data is easy to read. 4Easy to Read Numbers: This floating temperature gauge features large, easy to read numbers on a LCD screen that is allowing you to easily determine the temperature of your pool, spa, pond or bathtub. 5Wide Application: Floating thermometer is the best choice to enhance swimming pleasure. Ideal for family swimming pools, spas, pool spas, hot tubs, aquariums and fish ponds. Item Type: Pool Thermometer Material: ABS Water Temperature Range: -40 to +60 Indoor Temperature Range: -10 to +50 Frequency: 433MHZ power Waste: Display Console: 2 x AAA alkaline dry batteries (without batteries) Remote Control Sensor: 2 x AA alkaline dry batteries (without batteries) 1 x Display Console 1 x Remote Sensor 1 x Instruction Manual