[PSUBS-MAILIST] o2 monitors

[James Frankland via Personal_Submersibles]

hi All

I need another o2 monitor.  I have in the past bought the Crowcon 02
clip which has been excellent, but it only lasts 2 years and then
switches itself off.  At £150 a go they are getting expensive.


Any ideas on a reliable alternative that wont break the bank?

Thanks
James