Ultraclear digital LCD: large, easytoread display gives instant temperature readings so you can check water temperature at a glance, even in bright outdoor light. Fully submersible and built to last: dual rubber gaskets and IPX8 rating keep water out for reliable use while floating in the pool or left submerged. Wide, precise temperature range: precision replaceable sensor measures from 40°F to 140°F, so the thermometer works for coldweather storage, swimming pools, hot tubs and other water applications. Replaceable sensor for longterm value: the sensor can be replaced without replacing the whole unit, extending the life of the thermometer and reducing maintenance costs. /low alarm function: set and low temperature limits and receive audible alerts when water temperature moves outside your chosen range—useful for safety, comfort, and equipment protection. Compact floating design and simple operation: designed to float for convenient placement and repeated use; intuitive controls make it easy to read and set alarms without technical setup. Practical applications Pool safety and comfort: verify water temperature before swim sessions, set alarms to alert you if the pool drops below a comfortable level, or monitor after heater adjustments. Spas and hot tubs: maintain a consistent, safe temperature by using the thermometer's precise readings and /low alarms to protect users and equipment. Seasonal monitoring and storage: track water temperature during winterizing or while running offseason heaters; range down to 40°F covers coldclimate checks. What makes this thermometer worth choosing Accurate, reliable readings across a very wide temperature span. Durable, waterproof construction (IPX8) with dual gaskets for secure sealing. Replaceable sensor lowers longterm cost and simplifies upkeep. Builtin alarms that help prevent uncomfortable or unsafe temperature conditions. Specifications and features summary Display: digital LCD for ultraclear readings Waterproof rating: IPX8, fully submersible Seals: dual rubber gaskets Sensor: precision, replaceable Temperature range: 40°F to 140°F Alarm: userset /low temperature alerts Compatible uses: pools, spas, hot tubs, ponds and similar water environments where accurate, durable temperature monitoring is required.