Features:- The bathtub water temperature can be measured. When the water temperature is too high or too low, there are sound and light alarm prompts ? When the water temperature is too high, there is red backlight flashing and sound prompt ? When the water temperature is too low, there is a blue backlight flashing and sound prompt ? When the water temperature range is suitable, it has a green backlight and displays the timing and current water temperature- Timing function: Put it into the water to start timing; the product leaves the water surface, pauses the timing, puts it back into the water, and the timing continues without any setting.- Waterproof design of the whole machine- It can be used as a water thermometer during baby bathing- Product material: plastic, electronic componentsSpecification:- Easy to switch between ? / ? units- Temperature measurement range: 32 ~ 122? / 0 ~ 50? (below 32? / 0?, it will display LL.L, above 122? / 50 ?, it will display HH.H)- Measurement accuracy: ± 33.8? / ± 1 ?, resolution: 32.18? / 0.1?- High temperature prompt: higher than 102.2? / 39?- Low temperature prompt: below 96.8? / 36?- Maximum timing range: 59 minutes and 59 seconds- Battery: Two LR44 (or AG13) button batteries, can be used for about half a yearPlease Pay Attention:1. Must be used under adult supervision2. Please clean the two metal sensors in the bottom with shampo before using3. There is a cicular waterproof ring in the round outlet of the movement battey.4. Please make sure battery put back into the round groove and sealed tight. Otherwise, water will leak in.