phil.pepe at pcmail.maricopa.edu
Mon Mar 26 20:08:32 EST 2001
I am shopping for some cheap underwater timers that can be set to beep
at prescribed intervals such as once every minute. I want to use them to
quantify fish behavior so that an observer doesn't have to constantly
check their watch. Has anyone used this technique? Can you suggest a
device and perhaps a source for them?
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