All the alarms featured here meet with AS/NZS 3749.1:2003 Class A insurance standards (Previously known as a 5 star alarm under the defunct NZSA star rating system) or the respected Thatcham CAT 1 standard.
Alarm: Battery Back-up Siren, door, boot and bonnet protection, internal sensor.
Internal Sensors: Ultrasonics, Microwave, and glass break sensors are all allowed. It is worth noting that glass break sensors are not effective where the windows have an after market tint film (window tinting) fitted.
Remember that a big immobiliser is far harder to install effectively then a small one, plus a battery back-up siren with an over-ride key will put big limitations on where it can be installed. That said a good installation is still a must if the alarm is going to be an effective form of protection.