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Re: Re:Smoke Alarm
If you do add opto isolation or relays then the 10 year battery life
may
well be compromised. It really depands how much current might be drawn
by anything attached to the link wires whilst the sensors were in the
non alarm conditon. Best would be to have some very high impedence
voltage sensing input into any HA stuff.
K
JonS wrote:
> I was put off the 12V Ei interlinkable alarms that I could have
powered
> direct from Idranet as they were about 50% more expensive that the 9V
> version with a 10yr battery. The only disadvantage of this is that
the link
> is not a volt-free contact but a 6-9V signal. Opto-isolator or relay
> required to do the link into idranet.
>
>
>
>
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