Feature: 1. Floating on Water: The thermometer can float on the water and test the temperature of the water, so you can know the temperature of the water accurately. 2. Multi Function: You can set temperature alarm, nap alarm, display indoor and water temperature, month, date, week, time and receiving channel, which is powerful and reliable. 3. Stable Performance: It can receive three 433MHz channels and the water temperature at up to three positions, which is practical and professional. 4. Convenient Operation: With clear LCD display, the temperature data is clear at a glance. The receiver panel is equipped with main keys for easy use. 5. Widely Application: It is suitable for measuring the water temperature of swimming pool, pond and spa. It is widely used. It is a good measuring tool for swimming pool. Specification: Item Type: Wireless Swimming Pool Thermometer Material: ABS Weight: Approx. 343g / 12.1oz Wireless Receiver: AAA x 2 (Shipped Without Battery) Pool Thermometer: AA x 2 (Shipped Without Battery) Water Temperature Range: -40℃ to +60℃ Indoor Temperature Range: -10℃ to +50℃ Usage: Suitable For Measuring The Temperature Of Swimming Pool, Pond And Spa. Package List: 1 x Wireless Receiver (Without Battery)1 x Swimming Pool Thermometer (Without Battery) 1 x Manual