Features Excellent Material The pool thermometer is made of reliable ABS material, which is durable and antioxidant, has a long service life, and is suitable for indoor and outdoor use. Easy to Use Place the floating pool thermometer directly into the water and wait 1 to 2 minutes to read the degree. The thermometer displays the temperature in Fahrenheit and Celsius and the data is easy to read. Wide Application The floating thermometer is the best choice to increase swimming pleasure. Ideal for family swimming pools, spas, pool spas, hot tubs, aquariums and fish ponds. Floating Digital Swimming Pool Thermometer The digital swimming pool thermometer has a high precision temperature sensor to ensure accurate temperature readings. The tested temperature range is about -40 to +60 °C. EASY TO READ NUMBERS This floating temperature gauge features large, easy-to-read numbers on an LCD screen that allows you to easily determine the temperature of your pool, spa, pond or bathtub. Specification: Item Type: Pool Thermometer Material: ABS Water temperature range: -40 to +60 °C. Indoor temperature range: -10 to +50 °C. Frequency: 433 MHz. Waste of electricity: Display console: 2 x AAA alkaline dry batteries (without batteries). Remote sensor: 2 x AA alkaline dry batteries (without batteries). Package list: 1 x display console. 1 x remote control sensor. 1 x user manual. Note: 1. Install the waterproof ring flat in the slot and then tighten it with the battery. It must be tightened to be waterproof. 2. If no temperature indicator is displayed after installation, remove the battery, blow it dry with a bellows, remove the waterproof ring, pull it twice by hand, then insert it flat into the slot, then install the battery and tighten it. Package List 1 x Display Console 1 x Remote Sensor 1 x Instruction Manual