●High-Level Water Resistance: This wireless pool thermometer features an advanced IPX7 waterproof body with a heavy-duty silicone sealing ring, making it more waterproof, more impact-resistant, and more protected. Note that the silicone sealing ring is not removable. ●Upgraded Indoor Monitor: The included indoor monitor has a large screen, which displays indoor temperature and humidity and outdoor floating thermometer temperature at the same time. It also supports checking battery life, max/min value, and ℃/℉ selection. ●Stable Multi-Connection: This wireless pool thermometer set supports long-distance connections up to 300 feet, which is stable and reliable. The indoor monitor can be connected to 3 remote pool thermometers wireless, allowing us to view temperatures in different locations at the same time. ●High Precise Sensor: It’s trustworthy because of its highly precise sensor, accurate to ±1℃ (±1.8℉). Updating data every 10 seconds helps us timely know the current water temperature of the swimming pool from the wireless swimming pool thermometer or know the hot tub from a wireless hot tub thermometer without leaving our place. ●Wide Range Of Applications: Best pool thermometer floating easy to read, easy to install, and easy to use; This digital pool thermometer set is suitable for swimming pools, hot tubs, hot springs, small ponds, aquariums, and more. The digital pool thermometer comes with a 1-year warranty. Note: The temperature unit switching between the two units only affects the unit itself, and the data is transmitted synchronously.