ACCURATE READINGS - The bath thermometer has a clear LCD display with time display 12/24 hours selectable, which provides accurate readings in Fahrenheit and Celsius. Pool sensor temperature detection range: -40°C~+70°C (-49°F~158°F), indoor host temperature detection range: 0°C~+50°C (32°F~122°F), record MIN and MAX temperature values. WIRELESS CONNECTION - Wireless Range: 433MHz/80-120m. With a one-way connection, you can use the receiver to check temperature readings without leaving the room. The temperature error is within ±1°C, and the transmission distance is 50 meters. HIGH DUSTPROOF AND WATERPROOF PERFORMANCE - This water thermometer is made of high-quality and durable materials with higher dustproof and waterproof performance, which prevents the LCD screen from fogging during use and prolongs its service life. OUTDOOR THERMOMETER -The swimming pool thermometer (conical) floats on the surface of the water and measures the water temperature 100 meters above the water and 50 meters below the water. The measurement data is transmitted by radio to the site so it can be read on the base station or the transmitter itself.