
Intruder alarms are grouped by how sensors connect (wired or wireless), how the panel alerts you (siren only, phone app, GSM calls or SMS) and whether anyone monitors it. Wireless panels such as Hikvision AX Pro are quick to install; wired panels suit new builds and large sites; GSM alarms work without Wi-Fi.
Key takeaways
- Wired: robust, best fitted during construction.
- Wireless: fast install, no cables in finished rooms.
- GSM: calls/SMS without internet.
- Smart Wi-Fi alarms: app alerts, simple homes.
- Siren-only vs alerts to your phone.
01Compared
| Type | Pros | Watch out for |
|---|---|---|
| Wired (e.g. Texecom, Risco) | Reliable, expandable | Cabling through walls |
| Wireless (e.g. Hikvision AX Pro) | Quick, tidy install | Sensor batteries to replace |
| GSM alarm | Works without Wi-Fi | Needs airtime and signal |
| Smart Wi-Fi alarm | Low cost, app control | Depends on Wi-Fi and power |
02Sensors you can add
- Door and window contacts
- PIR motion sensors (pet-immune options)
- Glass-break detectors
- Outdoor beams
- Panic buttons
- Smoke detectors on some panels
Compare systems in best burglar alarm.
03Frequently asked questions
Which type of alarm is best for a home?
A wireless alarm with app alerts suits most finished homes.
Can an alarm work without internet?
Yes, GSM alarms or panels with a GSM module send alerts over the mobile network.

