A
AssociatedAlarms
The owner in this case wanted a wireless system so how would the other system which would have cost £2000 have behaved in the same inteference scenario you have painted?
FYI Visonic`s latest "kit" has agile frequency which changed on average 60 times a second. Making jamming virtually impossible. Also that special word TWO way reporting.
However;
Your quite good at this, picking figures out of the air. Not mentioning the system quoted for.
To use a Visonic with the above would cost in the region of £850 . Then add on a days labour ( not the £20 you seem to mention on your website).
And your in the region of £1.4k. (Remember that thing called VAT) Use a high end panel which would have some wired sounders and it goes up again. Use another totally wireless system and its higher again.
Its called market forces and costs, together with TWO way reporting. So yes you were cheaper, with cheap kit. Your overheads are minuscule . You have indicated you only have PL insurance not Efficacy. Another saving compared to another company.
You and your "fiends" bash on about one "System" are blinkered about other systems. Refuse to take on board anything else.