This Taylor Precision Digital Timer is able to time up to four events simultaneously. It features loud 100 decibel alarms, and the alarms have a distinctive ring for each timer. It also has individual lights which flash when each timer reaches zero. This timer has anti-microbial housing and is water-resistant. It can be wall mounted or stand on its own.Times up to (4) events simultaneously Counts up to 9 hours, 59 minutes and 59 seconds Loud 100 decibel alarms Alarms have a distinctive ring for each timer Individual lights flash when each timer reaches zero Anti-microbial housing stops growth of pathogens 0.9″ LCD readout Water-resistant Stand or wall mount (4) AA batteries included Model #: 5839 6024459