Thermometer and Timer 2-in-1 Multi-functional Design: With smart digital display, SP/ST button is start and stop, press and hold SP/ST and S at the same time to switch the temperature between F and C, M and S to set the minute and second time. Smart Digital Display: The numbers on the display are clearly visible in bright sunlight, even in a swimming pool, and the large digital display makes it easy to see the cold bath temperature and ice bath time at a glance. Easy to Use: Put it in the water and it will time immediately and pause once it leaves the water. If you put it back in the water within 6 seconds, it will continue to run; leaving the water for more than 6 seconds clears the timing. Enhance Your Bathing Experience: With waterproof and floating function, accurately monitor the temperature and time, it is a safety necessity to measure the water temperature and control the bathing time, enhance your bathing experience. Specification: Product Name: Ice bath Thermometer Temperature Range: -20C to 70.0C (-4F to 158.0F) Power Supply: LR44x2pcs Operating Voltage: 3.0V Colour:black & white Material:plastic The actual product may have slight color difference or difference, which will not affect the use Package Contents: 1 * Water Bath Thermometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.