need a digital timer with a softish alarm. Any ideas?

[sphil]

Odd request, but...
We are about to start toilet training DS2 (again) and want to use a timer which goes off every 45 minutes or so to promote independence in taking himself off to the loo (we're starting off with schedule training). Ideally I'd need something with a clip. I've seen some in shops and online, but the alarm needs to be fairly quiet so the other kids in the class aren't too disturbed by it, and you don't get to try out the alarm in shops!

So - has anyone got something like this and could tell me the make?
TIA

digital watches often have alarms, and aren't always intrusive (and, if you go to a jewellers, you could ask for a demo)

you could always strap it onto a belt loop if he won't wear a watch?

Ooh - good idea - I was only thinking of kitchen timers.

Malem alarms make a vibrating watch for this purpose www.malem.co.uk probably others do too but just noticed this whilst searching stuff for ds.