Inkbird Wireless Pool Thermometer and Receiver Set, Updated Version Floating Thermometer with Easy Read Display, Thermometer for Swimming Pool, Hot Tub, Hot Spring（Battery not Included）

Wireless Pool Thermometer: The maximum connection distance is 300 feet. You can check temperature readings with the receiver inside homeAccurate Reading: Support both Fahrenheit and Celsius readingsPremium quality: The thermometer has adopted high quality materials, it is solid and durableIPX7 Waterproof: The thermometer is ideal for swimming pools, fish ponds, aquariums, baby baths, spas, etcPool thermometer floating easy read, measurement range from minus 40 to158 degrees Fahrenheit ( minus 40 to 70 degrees Celsius)NOTE: to prevent water ingress, please tighten the cover when finished installing the batteries (battery not included)