PRO+4G | Advanced 4G-voLTE GSM Alarm Communicator

  • Real-time remote monitoring of alarms, faults & signals.
  • Compatible with any alarm panel or sensor
  • Realtime alarms by SMS, voice call message, emails & ARC.
  • Rapid retrofit upgrade to 4G for legacy systems 
  • ARC-ready GPRS/4G alarm comms for fire & intruder
  • OPTIONAL: All inclusive annual contract SIM
  • OPTIONAL: WebAlarm®  Live Alarm Signal Monitoring (Cloud) 

List price:

£368.00 (excl. VAT)

Realtime Cloud Monitoring System

[PRO+4G] incl. WebAlarm Cloud Monitoring & SIM Service
Never miss a mission-critical event!
[PRO+4G] incl. WebAlarm Cloud Monitoring & SIM Service
Download the WebAlarm Presentation

Bundle the PRO+4G communicator with purpose-built cloud monitoring!  


  • Realtime events in a web browser
  • Realtime mobile connectivity loss/restore emails
  • Realtime Mains Fail & Restore emails (and/or SMS)
  • Dynamic GoogleMap with realtime alarm status
  • Customisable emails to stakeholders (per location)
  • User heirarchy for multi-operator management
  • Search, filter & export event log reports for compliance
  • WebAlarm Cloud Monitoring (annual service incl. SIM)
  • Additional locations (annual service fee incl. SIM)

A complete stand-alone remote monitoring system.

Keeping a constant eye on remotely located assets requires more than an SMS, email or phone call. It requires a customisable blend of communication methods to a range of users to ensure mission-critical information is delivered and handled efficiently. Reliable remote monitoring from ControlFreq is tailored to suit your application.  

Customisable remote monitoring with a web-browser UI.

ControlFreq customisable web-based software is what separates our remote monitoring from the competition. Our WebAlarm onboarding team work with you to deliver the data you need to see, where you need it and all in real time. 

Download 'WebAlarm Presentation' with pricing

Alarm & fault events delivered over modern communication paths!

Not all remote monitoring applications are the same. Some require just a simple SMS or phone call notification while others command more sophisticated, rule-based & event logged reporting systems delivered over multiple communication paths for mission-critical notifications in realtime.

Smart remote management for people with no time to waste.

ControlFreq apps are designed for system adminstrators to take full control of system and user management in-house for more efficient operations while offering 'self-manage' installers the ability to generate ongoing service income.

Self-contained 'stand alone' electronics for easy integration.

ControlFreq hardware can be installed stand-alone including a battery back up. It can also be integrated into 3rd party panels by removing the communicator from the metal hosuing and using the PCB-only enclosure.

Rule-based customisable alarm delivery service. 

ControlFreq can build tailor-made alarm delivery flows for virtually any monitoring application. Flow receives an alarm notification SMS from any system to initiate the automated alarm delivery flow to multiple users across a range of modern communication methods.

5G-ready! New modular design 4G-voLTE mobile hardware.

In the name of long-term reliability & servicability, we've designed our hardware for any future eventuality by integrating plug-in modules for easy swap-out without replacing the whole system.

Product Information

PRO+4G | Advanced 4G-voLTE GSM Alarm Communicator

Highly configurable & universally adaptable remote monitoring for virtually any application...

The PRO+4G is a highly configurable, advanced professional 4G GSM auto-dialler designed to remotely monitor virtually any remote fault or alarm condition.

The alarm trigger can be an alarm panel of any kind, a volt-free relay contact N/O or N/C, positive or negative voltage or directly from any type of sensor. The PRO+4G is truly universal for any application.

With the optional Mains fail the PRO+4G offers instant remote mains-fail and restore monitoring, a valuable solution if used for that purpose alone. 

The PRO+4G sends custom SMS and/or voice calls up to 10 user phones with customisable SMS and voice message.

Optional services allow for customised alarm delivery including email and WebAlarm® web-based ARC monitoring alternative.

WebAlarm® is a new way to remotely monitor an unlimited amount of locations with web interface, email, SMS & phone call notifications to dedicated receipients per location.

Very powerful yet simple remote monitoring.

Optional Add-ons

External Antennas

System Enhancements

Managed Services

Tried & Trusted 4G Solution Providers

Why ControlFreq?

When you buy ControlFreq, you don't just buy a product – you're investing in the peace of mind that when it really counts, it works – and if you have any issues, we'll be there – any day of the week. ControlFreq stands for quality & reliability above all else which is why we offer 7-day phone support, advanced replacement & extended warranty for trade buyers.

Mobile-first, always.

We do GSM, only GSM and, some say, the best GSM. Every visitor to ControlFreq brings a challenge. More often than not we have GSM kit off-the-shelf, for next-day delivery, complete with SIM card and, if required, professional setup support. If any level of customisation is required, or you'd like to discuss a specific technical challenge, book a 15 minute 'solution-discovery' call with a solution expert. 

Trade-Focused Support

ControlFreq2.0 is dedicated to helping trade & industry overcome legacy challenges, using the best mobile technology available. We employ tried & trusted hardware, software and experience to deliver products & services our customers  can rely on – and when it really counts, a highly experienced support engineer will be there on the end of the phone, when you need them the most.... Not when our office is open but when help is really needed.

Solution Innovators.

ControlFreq is a solution innovator working with like-minded innovators to create the best outcomes possible.  We've earned our stripes over a 15 year improvement journey developing back-end systems and  professional partners. ControlFreq stands for premium quality, rock-solid reliability and helpful tech support. In 2022, ControlFreq2.0 launches a 4G GSM intercom with a lifetime 'trade' warranty, new concepts in remote alarm monitoring and simple, yet powerful, 4G technology to modernise any access control system in less than an hour.