Heart Rate Monitor - Anyone used a no-diving HRM?

[scuba_dog]

I'm just interested to know whether anyone has tried using a "standard" HRM to dive in.
I'd really like to use one to monitor exactly what stresses I'm going through specifically for teaching and can't
afford the super all-in model like the Gallileo

My HRM only states "Water resistant to 50m" and the transmitter "Water resistant to 30m" so in all liklihood this is a complete no-no as all the manufacturers say its ok for swimming but definitely NOT for scuba.
But I only want to go to 2.3m and possibly 6.5m in open water and I'm really interested to know if anyone has done this.

After all its only 1.65 bar max or about 24 psi for max 25 minutes but its probably enough to kill it due to the sustained pressure on the seals.

Anyone tried it before I experiment?

Cheers
/dog

 

[TT_Vert]

What HRM do you use? I have a polar CS200 and I didn't even know it was water resistant. I figured if the contacts created a circuit in water it wouldn't read. I wonder how uncomfortable that'd be under a wetsuit. I may have to give this a go next week..

Dave