Feature: 1. WIRELESS POOL THERMOMETER: The maximum wireless connection range of the floating pool thermometer is 328 feet, and the temperature error range is within 1 . The outdoor swimming pool thermometer can be wirelessly connected to the indoor receiver, allowing you to use the receiver to check temperature data without leaving the room. 2. DIGITAL POOL THERMOMETER: The float of the pool water thermometer is equipped with a sensitive contact probe, which can quickly and accurately detect the water temperature. The pool thermometer has a clear LCD display screen that can display the time of 12 to 24 hours. Wireless swimming pool thermometers provide you with accurate readings in Fahrenheit and Celsius, supporting both maximum and minimum temperature records. 3. PRACTICAL ACCESSORIES: Digital thermometers are packaged with ropes. The wireless swimming pool thermometer will float with the water, so tying a rope to the thermometer can help you quickly find the swimming pool thermometer without losing it. 4. EXCELLENT WATERPROOF: This swimming pool temperature thermometer has an advanced IP67 waterproof and comes with a double sealed waterproof cover. Before placing the digital pool thermometer in water, please tighten the thermometer cover, otherwise water may enter. If you find water mist on the screen of the float pool thermometer cover, please remove the cover and dry it before use. 5. MULTIPURPOSE: The wireless pool thermometer float has a compact and exquisite appearance, rich functions, which is very suitable for use in swimming pools, hot tubs, aquariums, baby bathrooms, and spa centers. No matter where you need to check the water temperature, a floating pool thermometer is the perfect choice to ensure the appropriate temperature. By using a swimming pool thermometer, you can always monitor the real time temperature and swim at the optimal temperature. Specification: Item Type: Wireless Pool Thermometer Material: ABS Thermometer Battery: AA battery x 2 (thermometer shipped without battery) Receiver Battery: AA battery x 2 (receiver shipped without battery) 1. Receiver: Indoor Temperature Range: 14 to 122 (-9.90 to 50 ) Indoor Humidity Range: 1% to 99% 2. Pool Thermometer: Temperature Range of Water Pool: 14 to 122 (-9.90 to 50 ) . Package List: 1 x Thermometer1 x Receiver 2 x Manual