[Wireless Pool Thermometer] The maximum wireless connection range of the floating pool thermometer is 328ft, and the temperature error range is within ±1℃. The outdoor pool thermometers can be wirelessly connected to indoor receivers, allowing you to use the receiver to check temperature data without leaving the room. [Digital Pool Thermometer] The pool thermometer floating is equipped with a sensitive contact probe, which can quickly and accurately detect water temperature. The swimming pool thermometer has a clear LCD display screen, which can display 12/24 hours of time. You can choose the temperature unit you want through the "C/F" button. [Helpful Accessory] The digital pool thermometer is packaged with a rope. The wireless pool thermometer float around with the water, so tying to the thermometer allow you to find the pool thermometer quickly and not lose it. [High-Level IPX7 Waterproof] This pool temperature thermometer features an advanced IPX7 with a double-sealed waterproof cover. Before placing the pool thermometer digital in the water, please tighten the thermometer cover, otherwise water may enter. [Multiple Purposes] The wireless pool thermometer floating has a compact and exquisite appearance, rich functions, and is very suitable for use in swimming pools, hot tubs, aquariums, baby bathrooms, and spas. Wherever water temperature needs to be checked, the floating pool thermometer is the choice to an appropriate temperature. With the pool thermometer, you can stay informed of real-time temperatures and swim at the optimal temperature. Colour:White Material:Plastic Package Contents: 2 x pool thermometer 2 x Digital Display 2 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.