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Posted (edited)

So, I've decided to take my work back underground.... to stop it falling into the wrong hands

 

Posted
5 hours ago, datadiffusion said:

"Cost a lot when installed".

 

either been raped by for 5k over 3 yrs for \ monitored alarm by pushy sales

 

or does not get the concept that it quite dear to employ people to fit stuff 

  • Like 1

Mr th2.jpg Veritas God

Posted

a common use would be a 24hr circuit on say a wine / spirit store in the cellar in public house

 

anyone opening the door would set the alarm off, a zone omit module would permit authorised people to use set the 24hr circuit & access the store.

 

There a 2 types, one with key on the front & one controlled by an external switch normally a 5 lever chubb lock in the door

 

The common method was contact on the door with cc wiring inside under hardboard, operating the chubb lock turned off of the circuit secure the lock on the door  turned the alarm back on

 

Mr th2.jpg Veritas God

Posted
1 minute ago, Logan said:

Cool. 

 

they used to be £100ish IIRC,

 

other common uses where limpets or fire door/ loading doors

Mr th2.jpg Veritas God

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