For me diagnosed fault indicated poor crimped connection, but this wasn't necessarily authoritative. No corrective action other than pushing crimps tight. Circumstantially seems other causes remain plausible. Now that I have a repeat, it needs to be soldered and crimps removed.
False alarms : MANY, only legitimately caused ones are vibration - against the passenger front side of the vehicle - direct and strong water spray, loud V8 blasting past vehicle while parked. many other not accounted for, presumed to be due to fault.
On two occasions, mine was unlawfully entered and the alarm did not activate. Only known reason for failure to trigger is the possibility the vehicle was left unlocked. I consider this unlikely.
Strong wind and hail would both be vibration triggers, I think.
"Blue Meanie" 2007 Aurora Blue MPS 3 - 18x8.5+44 SSR GTX01 - 235/40R18 Michelin PS5 - 3.5" ETS TMIC - CPE stg 2 mount - HKS/CPE BPV - 2XS inlet - 2XS short shift - Corksport turbo manifold - HT 98 octane tune - Leather/Aluminium handbrake - Momo shifty knob - 7" touchscreen - JDM Mazda Retractable dashtop screen assembly - Bespoke Raspberry Pi Android based GPS/Carplay and instrumentation - 36AH reserve battery and C-TEK isolator - TEIN Street Advanced coilovers 1" drop - Superpro bushings - 220Kw/410Nm.
"Lipstick" 2013 Velocity Red MPS 3 - 18x7.5+48 Enkei RPF1 -225/40R18 Federal RS-RR - CPE TMIC - COBB inlet - CPE stg 2 mount - COBB Stage 1 98 octane tune - COBB shifty knob - 2XS short shift - 2XS turbo manifold.