About this item ?Wireless Digital Pool Thermometer?The 2.5" digital display screen shows pool water temperature clearly. The wireless transmission technology allows for uninterrupted transmission up to 196 ft, and the data is updated every 50 seconds. Convenient monitoring without approaching the thermometer. ?High Accuracy Pool Thermometer?This Digital pool thermometer features high-precision measurement capabilities, with a measurement accuracy of only +/-1.8F in the temperature range of 32F to 122F. You can accurately monitor the swimming pool temperature and ensure that you enjoy within the appropriate temperature range. ?Multi-location Data?Supports up to 3 pool sensors (Note: Package includes one sensor). This pool thermometer features easy setup and user-friendly operation, making it accessible to individuals who are unfamiliar with technology products. ?Upgrade IPX8?The pool thermometer is designed with IPX8 waterproof and high-quality ABS materials, ensuring excellent durability and resistance. Making it work in wet environment for long time without damage. ?Mulit Application Occasion?The indoor thermometer is suitable for temperature ranges from 14F to 140F, while the outdoor sensor is suitable for temperature ranges from -4F to 140F. They are applicable to various places such as pools, bath tub, fish tank, aquarium, pond, spa, and hot spring.