【High Waterproof Performance】: The wireless pool thermometer host adopts an improved design and is equipped with a double rubber seal. Made of high-quality and durable materials, IP68 is more waterproof, and when in use, the cover should be tightened to improve the waterproofness while preventing the LCD screen from blurring during use, Wireless transmission range up to 50 meters. (164 feet) 【Accurate Temperature Monitoring】: Floating pool thermometer display ℃ / ℉ is optional, compatible with 2x1.5V "AAA" "AAA" alkaline batteries. The temperature detection range of the indoor host is: 0 ℃ -50 ℃ and is updated every 30 seconds, and the temperature detection range of the outdoor water thermometer is: -40 ℃ -70 ℃. The transmitter frequency is 433.92 MHz, the wireless range temperature error is within ±1°C. 【Multiple Uses】: The display of the Pool WiFi thermometer is 12/24 hours optional, with a daily clock function, which is clear at a glance. The pond water temperature tester is ideal