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Growing number of schools interested in lockdown alarms as part of their security strategy


The demand for digital solutions to improve safety in schools is growing. We naturally look to the US, where a number of serious incidents in schools have created widespread insecurity — but a few years ago, it actually happened here in Trollhättan, when a 21-year-old masked man attacked two students who tragically lost their lives.


A considerably less dramatic incident occurred a couple of years ago at Matteusskolan in central Stockholm, when a former student returned to their old school and behaved in a threatening manner. Young children were locked inside classrooms for several hours while waiting for the police to arrive.


It is becoming increasingly common for school staff to receive training on how to handle these types of incidents. With Crystal Alarm as a support tool, staff can quickly alert the nearest colleague or manager. The app also includes support for so-called Lockdown procedures, meaning the alarm centre can ensure that neither information nor people leave the building.

Published 25 march 2020

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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