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Better indoor positioning with iBeacons


As is well known, GPS works flawlessly outdoors — but many of our users need to see the location of a person in distress inside a building. With the help of iBeacons, you can pinpoint exactly where a person who has raised an alarm is located, right down to the specific room and floor.


The market for Beacons is red hot right now, and the range of applications is vast. iBeacon is a standard format developed by Apple that broadcasts signals to mobile apps (both iOS and Android). This allows tailored information to be sent to mobile users and triggers certain pre-programmed actions depending on where the user is located. The only limit to how Beacons can be put to use is your imagination.


At Crystal Alarm, we have used the technology to precisely locate a user inside a building. iBeacons are placed at selected points throughout a building and continuously transmit position data to staff members' mobile phones. The position of the nearest iBeacon is included when alarms are received by our systems and the alarm centre.

By Annabel Daisley

Published 25 october 2018

More articles

Beacon Tuner for Android Devices

Crystal Alarm launches Beacon Tuner for Android, an app that simplifies the installation and maintenance of iBeacons for indoor positioning. The app displays all active beacons sorted by proximity, battery level per device, and enables colour coding to, for example, identify floor levels. Battery levels are automatically synced to the Self-Service Portal. Launch is planned for April.

March 31, 2026

Crystal Button CB20 – 5,000 Units Sent with Zero Returns

Crystal Alarm announces that their new personal alarm, the Crystal Button CB20, has received a strong reception since launch — with nearly 5,000 units delivered and not a single return. The button has been designed for demanding environments such as industrial, healthcare, and logistics settings, offering a range of up to 400 metres, a five-year battery life, and an IP67 rating. The CB20 uses a proprietary communication protocol for greater reliability than standard Bluetooth, and can be integrated with the Crystal Alarm App, Wi-Fi positioning, and Cisco infrastructure.

February 22, 2026