Two axes decide which device fits your premises: Standalone (GSM) vs Cloud (subscription), and Shutter-mount vs Home / direct-power.
Device
Connectivity
Power
Cloud / Portal
Battery
Mount
Shutter Security
GSM + WiFi
Removable battery
No
12–15 days
Any shutter
Home Security
GSM + WiFi
Mains + auto backup
No
N/A (mains)
Wall / premises
Shutter Cloud Security
WiFi only
Removable battery
Yes — portal + app
~60 days
Any shutter
Home Cloud Security
WiFi only
Mains + auto backup
Yes — portal + app
N/A (mains)
Wall / premises
Standalone · GSM
Shutter Security
Mounts on any shutter, any level. Runs entirely on its own SIM — no WiFi required for the call or SMS to go out. WiFi is used only to send an email alert alongside the GSM call.
GSM call + SMS to configured numbers on trigger
WiFi email alert alongside the GSM call
On-device alarm siren
DND schedule configuration
24hr override — critical alerts ring through regardless of DND
Low-battery indication via on-device LED
Easily removable battery — charge separately, slot back in
Configurable from the VoidStar mobile app
BATTERY 12–15 DAYS · MOUNT: UNIVERSAL SHUTTER
Standalone · GSM
Home Security
The same GSM-based alerting as Shutter Security, built for premises with a wall socket nearby. Runs on direct power with a battery for backup — no manual charging routine.
GSM call + SMS to configured numbers on trigger
WiFi email alert alongside the GSM call
On-device alarm siren
DND schedule configuration
24hr override for critical alerts
Automatic switch to battery backup on power cut
Automatic switch back to mains once power returns
Configurable from the VoidStar mobile app
POWER: MAINS + AUTO BACKUP · MOUNT: WALL / PREMISES
Cloud · Subscription
Shutter Cloud Security
No SIM card, no monthly recharge. WiFi-only, it hands every event to the VoidStar cloud, which sends the alert out across call, SMS, email and app push — and keeps a full log.
Cloud-dispatched call, SMS, email and app push
Subscription billing — no SIM recharge to manage
Configurable from the web portal and mobile app
Per-event logs and stats in the mobile app
DND schedule with 24hr override
Easily removable battery — charge separately, slot back in
BATTERY ~60 DAYS · MOUNT: UNIVERSAL SHUTTER
Cloud · Subscription
Home Cloud Security
All the cloud-connected alerting of Shutter Cloud Security, on direct power with automatic battery backup — built for homes and premises near a wall socket.
Cloud-dispatched call, SMS, email and app push
Subscription billing — no SIM recharge to manage
Configurable from the web portal and mobile app
Per-event logs and stats in the mobile app
DND schedule with 24hr override
Automatic switch to battery backup on power cut
POWER: MAINS + AUTO BACKUP · MOUNT: WALL / PREMISES
Not sure which line fits?
Standalone if you want zero subscriptions. Cloud if you want a portal, app logs and multi-channel alerts.
Talk to us with your premises details and we'll recommend the right device and plan.