Alarm communicators
4G-VoLTE communicators that send alarms by SMS, voice call, email or to an ARC.
- Universal Alarm Signal Communicator (4G-VoLTE)
- Universal 4G SMS Alarm Communicator
- 4G Audio Challenge Loudspeaker for CCTV (4G-VoLTE)
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Find help for your product
Each range brings together guides, FAQs, manuals and links straight to the products in the shop.
Access, parking & control
GSM intercoms, gate and barrier control, PIN keypads, Wiegand controllers and vehicle access.
- 4G GSM Audio Intercom – Anti-Vandal 1 Way (4G-VoLTE)
- Caller-ID Remote Gate & Barrier Control (4G-VoLTE)
- 4G PIN Code Keypad Access Control (4G-VoLTE)
Accessories
Antennas, extension cables, power supplies and enclosures for 4G devices.
- 4G External High-Gain Magnetic Antenna 3–5 dBi
- 4G YAGI Directional Antenna – Ultra High-Gain
- 15VDC 1A DIN-Rail Power Supply for 4G Devices
Landline alternatives
Replacing PSTN phone lines on alarm and other systems with 4G.
Browse landline alternativesEvolveSIM
EvolveSIM multi-network SIMs for ControlFreq devices.
Browse SIMsWebAlarm
Optional cloud monitoring: live alarm logging, status and remote configuration.
Guides and policies
Manuals, set-up guides and our delivery and returns policies.
Product manuals and downloads
Manuals and PC software downloads.
Jargon buster
Glossary of terms used with ControlFreq products.
Learn about GSM
How GSM is used on alarm and access systems.
EvolveSIM cards
Multi-network roaming for GSM systems.
Returns
Returns information.
Shipping
Shipping information.
Support
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Sales
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· hello@controlfreq.co.uk
Accounts
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