Thermometer and Timer 2-in-1 Multi-functional Design: Features a smart digital display. The SP/ST button starts and stops the timer. Press and hold SP/ST and S simultaneously to switch temperature units between Fahrenheit and Celsius. Use M and S to set minutes and seconds. Smart Digital Display: Large, clear digits remain visible in bright sunlight and underwater, allowing easy monitoring of water temperature and timing during use. Easy to Use: Automatically starts timing when placed in water and pauses when removed. If returned to water within 6 seconds, timing resumes; if out of water for more than 6 seconds, the timer resets. Enhance Your Bathing Experience: Waterproof and floatable design enables accurate monitoring of water temperature and immersion time, supporting safe and controlled bathing sessions. Specification: Product Name: Ice Bath Thermometer Temperature Range: -20°C to 70.0°C (-4°F to 158.0°F) Power Supply: 2 x LR44 batteries Operating Voltage: 3.0V Color: Black and White Material: Plastic Note: Actual product color may vary slightly due to lighting and screen differences. This does not affect functionality. Package Contents: 1 x Water Bath Thermometer (Other items not included) Note: Due to lighting reflections and display variations, the item color in images may differ slightly from the actual product. Measurement error allowance: +/- 1-3 cm.