Our house is a lowest with an existing security system, not monitored but is becoming unreliable. I changed the back up battery and it was no better. We have a Ness D8 controller and a model Ness D8-98 box with an aerial attached.
When I arm the system and go away for probably 24 to 48 hours all is well but if left for longer I believe the alarm must have been going as the blue outside light was flashing.
Specific Job Details:
Schedule: Need job done this week
Budget: Not Specified
Site Visit: Anytime