Gives readings of water temperature, using an attached measuring prong, and alerts if the range is outside that set by the user, whether the water is too hot or cold. When the water touches the two metallic prongs, located on the bottom of the main unit, audible beeps will sound informing the user that the water is at the desired level. Temperature can be manually set between -50ºC to 120ºC (-58ºF to 248ºF). Small digital LCD display, with digits measuring 70mm (2') in height, shows the water temperature, time and also has a built in countdown timer. Splash resistant unit attaches to the bath via a large suction cup and requires 2 x AAA batteries (included).