Electronic timer with two alarms, adjustable from 3 to 27 minutes. We set it at 9 minutes when
offshore. The first
alarm alerts the on-watch to reset the timer by depressing a pushbutton switch and the second
alarm goes off one minute later to alert the off-watch--loud enough to wake the dead! 12 Vdc Used, in good condition. Photos on request. US$75 USPS priority mail included in Continental
USA.