Built with waterproof ABS housing and enhanced signals stable antennas, it ensures year round durability and accurate data transmission even in freezing environments through energy efficient 2.7V 3.3V power design This advanced pool thermometers features a multi sensors systems supporting up to 3 temperature sensors ( 1 included), precise measurements from 40°C to 70°C for both indoor climate and extreme outdoor water conditions with 30 second real time data updates Perfectly adapts to swimming pools, hot tubs, fish tanks, bathtubs, and outdoor water features with its floating sensors and wall mountable indoor unit for flexible placement Ideal for pool owners, aquarium enthusiasts, spa operators, and parents supervising children ' s inflatable pools requiring stable water temperature tracking Equipped with a double display interfaces showing temperature / humidity readings, 12 / 24 hour clock, and ℃ / ℉ units, it smart features including high / low temperature memory, water fluctuation alerts, and low battery indicators for effortless, Manufacturer: Dasbsug