Features WIRELESS POOL THERMOMETER: The maximum wireless connection range of the floating pool thermometer is 60m, and the temperature error range is within ± 1 ℃. The outdoor swimming pool thermometer can be wirelessly connected to the indoor receiver, allowing DIGITAL WATER 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 swimming pool thermometer has a clear LCD display screen that can display 12 PRACTICAL ACCESSORIES: Digital swimming pool 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 WATERPROOF: This swimming pool temperature meter has a IP67 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 MULTIPURPOSE: The wireless swimming pool thermometer float has a compact and exquisite appearance, rich functions, and is very suitable for use in swimming pools, hot tubs, aquariums, baby bathrooms, and spa centers. No matter where you need to check the Specification: Item Type: Wireless Pool Thermometer Material: ABS Thermometer Battery: AAA battery x 2 (thermometer shipped without battery) Display Battery: AAA battery x 2 (monitor shipped without battery) Indoor Temperature Range: 0 ℃ to 50 ℃ Outdoor Temperature Range: -40 ℃ to 70 ℃ Wireless: 433.92MHz Transmission Distance: Approx. 60m / 196.9ft Time Display: 12, 24H optional It can display the real time temperature of the water area where the sensor is located and the indoor real time temperature of the host on the same screen. Supports recording of the highest and lowest temperatures of the day. Indoor and Outdoor Temperature Display: ℃, ℉ optional. Package List:1 x Thermometer1 x Display 1 x Rope 1 x Manual  Package List 1 x Thermometer 1 x Display 1 x Rope 1 x Manual