IPX7 Waterproof: The pool thermometer has a robust ABS housing and is IP67 waterproof. You don't have to worry about water ingress. The measuring range is -40°C to 70°C, and the temperature unit is selectable: °C/°F. The display updates every 30 seconds, so you always have an eye on the water temperature. It is ideal for use in swimming pools, hot tubs, swimming pools, bathtubs, ponds, and other locations. The high-precision temperature sensor water thermometer is equipped with an LED display and a transmission distance of 50m. We use highly sensitive electronic sensors and more stable signal antennas to allow you to monitor water temperature changes anytime, anywhere. It is equipped with a comfort indicator so you always have the most pleasant water temperature, which is essential for you as a pool accessory. Easy to use: When batteries (not included) are inserted into the pool thermometer, the device immediately begins measuring your pool's temperature. The indoor receiver supports