Levenhuk Weezer Tick H20 Timer. The Levenhuk Weezer Tick H20 is a useful technical accessory for everyday life and work. It helps you organize your time more efficiently. It alerts you when it's time to check a dish that is currently cooking or being left unattended in the kitchen. It is also helpful when you are performing your cosmetic treatments. The timer assists you in many ways to organize your daily routine. You can hang the timer on the wall with a self-tapping screw or attach it to a metal surface, such as a refrigerator, using its magnetic back. The device operates on standard batteries. Timer with minute and second display. Features a volume control, including a mute option. Standard wall mounting hole and magnetic back.