Our Heathrow ScientificTriple Timers have three channels that count down independently or simultaneously. A unique, audible alarm provides an alert when time is complete; the timer automatically counts up after zero to show time elapsed since alarm.
Daigger Triple timers allow a maximum of 20 hours per channel. Memory recalls previous interval settings and a time-out feature pauses the count. The timer can also display clock and/or stopwatch (to 1⁄100 sec).
Each timer includes a AAA battery with approx. 2-year life – order replacement batteries separately. Dimensions:2 1⁄2" x 3 3⁄8" x 7⁄8".
Monitor times for 3 different experiments -- channels can be started independently or simultaneously