Re: [mh] Security Suggestions

[Jason S. <ja...@sh...>]

My past experience with the MS10? X10 sensors was the batteries would 
last about 6 mo's in high traffic areas.   I no longer use open-loop 
sensors anymore though so am unsure of what the latest X10 has to offer.

-J



On Tue, 4 Dec 2007, JGreeno wrote:

>
> Sounds like that may be the way to go. Will save me some wiring too.
> What kind of life do you get out of the batteries in the wireless sensors?
> I'd like to avoid daily or weekly battery swaps if possible.
>
> Thanks,
> -Justin
>
>
>
> dbell-2 wrote:
>>
>> MrT <tartheode@...> wrote:
>>
>> Stu Wells-2 wrote:
>>>>
>>>> ... The only benefit I've seen over wired sensors is the reliability and
>>>> I've never missed a event with the DS10 from X10.
>>
>>> One problem with home-brew security solutions is that the sensors are not
>>> "supervised" (i.e. monitored). A dead motion sensor reports nothing and
>>> leads the application to conclude there's no movement in the room.
>>
>> I don't know about the motion sensors, but as the OP asked about X-10 door
>> and window sensors, I have to disagree. Each sensor transmits its status
>> (Alert or Normal) once an hour, regardless of activity. In my MH code, I
>> set a time tag when an input is received from each sensor. In the main
>> loop, I compare time_now to the saved time, and if it exceeds 80 minutes,
>> I report a dead transmitter.
>>
>> Dave
>>
>>
>>
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