4G & 5G GSM Alarm Dialler, SMS Sender and Emailer for Intruder and Fire Alarm Panels

Regular price £299.00

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4G & 5G Monitoring and Control Systems

4G - High speed, multiple networks

5G - Works deep underground and inside buildings where mobile phones won't reach

Includes 10 years service and 1000 SMS and calls

Our Cloud Alarm Diallers are connected directly to a data center telecoms service. With connection to multiple networks and hourly testing by the cloud for the life of the unit, this is the most reliable alarm dialler available. 

  • No SIM card required! 
  • Each unit pinged every 4 minutes to check status
  • Just pay for calls and SMS used
  • Cheap VoIP calls and messages available
  • Credit never expires
  • No disconnection due to inactivity
  • Text-to-Speech voice calls
  • Dials all numbers at the same time
  • Send SMS to all numbers at the same time
  • The most reliable alarm dialler on the market

The data connection to multiple networks in 170 countries (including EE, Vodafone UK and O2) has been prepaid for the life of the unit. Just pay for the SMS and calls you use! There is no risk of SIM deactivation due to lack of use.

If my dialler stops working how would I know?

The 5G IoT networks, particularly NB-IoT, offer connectivity deep underground and inside buildings. They work where mobile phones do not work. The network sends the data to the dialler 2048 times so the dialler can determine the data from the background noise where there is barely any received signal. This is how the 5G dialler achieves such high levels of sensitivity. The downside? It's a slower. Messages can have up to a 1.6-10s delay. NB-IoT requires 5G Vodafone in your area and currently covers 98% of the UK. 1 bar on your phone outdoors will be fine. The 5G unit falls back onto GSM 2G where there is currently no NB-IoT or LTE-M coverage.

Order the 5G unit if you're installing the dialler somewhere indoors where there is poor reception. The 4G dialler gives high speed access to most networks worldwide and all 4 UK networks. 


The Alarm Dialer is ideal for use in Burglar or Fire Alarms as a universal fit cell phone Auto-Dialer/SMS Message Sender with email. With 2 inputs both the intruder alarm bell and set/unset status can be monitored.

Similarly, on fire panels the fire alarm bell and fault output can be monitored. By default, alarm activation on input A triggers SMS messages and telephone dialling (messages are read out during the call). Set/unset or fault activation on input B triggers emails sending which is free.

All setup is done online using a PC or smart phone. Each messages can be fully customised using the online portal. Basic programming can also be performed by SMS.

Every 4 minutes the unit is contacted by our server to ensure it is functioning correctly. Any critical faults found are sent to the master user by SMS and email.

We can offer online interactive support for any out of hours support issues here:



Service charges on all 4 UK networks (and 100+ international) prepaid for 10 years (current service charge for an additional decade is £80+VAT).  This includes 1000 SMS and calls.


Outside of the free allowance, calls and text messages are charged at a flat rate worldwide as follows:

Outgoing Charges

Calls: £0.10 per call

SMS: £0.10 per SMS

VoIP Call: £0.03 per call

VoIP Message: £0.01 per message

Email: £0.002 per email (0.2p)

Incoming Charges

Dial-ins: £0.01 (up to £20 max per year)

SMS: £0.01


Can I use my own SIM? No this is not possible. The connection to the major networks in most countries has been prepaid for the life of the unit so there is no need to pay twice. Hence there is no SIM card holder.


For further information please visit here:

Demo:  https://priory-electronics.com/index.html#demo

Interactive Online Help: https://iot-portal.com/help.php

SMS Programming

Online Programming

Top Up info