IoT & Connected Devices
The Internet of Things relies on consistent, reliable cellular connectivity. Whether it is smart building sensors, remote asset tracking, environmental monitoring or connected security systems, Zonegen ensures your IoT infrastructure stays online — even deep inside complex buildings.
- Reliable cellular for 4G and 5G IoT devices in any environment
- Supports smart building systems, BMS and environmental sensors
- Enables remote asset monitoring across large or complex sites
- Eliminates cellular dead zones that cause IoT dropouts
- Works with all major UK network operators
Do signal boosters work in IoT and connected devices?
Yes — a Nextivity Cel-Fi booster gives SIM-based IoT devices reliable 4G and 5G signal indoors, cutting dropouts in sensors, alarms, meters and building management systems. The right system depends on the networks your SIMs use and the building size, so Zonegen confirms the design at survey.
The problem
Why is mobile signal poor in IoT and connected devices?
Devices in hard-to-reach places
Meters, sensors and controllers often sit in basements, risers and plant rooms with the weakest signal.
3G switch-off
UK 3G networks have closed. Older 3G devices must move to 4G — and Cel-Fi does not boost 3G.
Mixed SIM networks
IoT fleets often use different networks, so the system must match the SIMs in use.
Silent failures
IoT dropouts often go unnoticed until data is missing or an alarm fails.
The solution
Which signal booster is right for IoT and connected devices?
Zonegen recommends the system after a free consultation — never more than your building needs. Prices shown are starting prices; your exact price is confirmed after consultation.
Cel-Fi GO G41
From £1,795
Single-network smart booster — one compact unit, up to 100 dB gain.
Best for: Small sites where all devices use one network.
Cel-Fi GO G43
From £5,995
Multi-operator booster — EE, O2 and VodafoneThree from one unit.
Best for: Sites with mixed SIM networks.
Cel-Fi QUATRA 4000e
Quoted after survey
Enterprise system for all UK networks. Up to 12 Coverage Units per system, and the Fibre Range Extender bridges up to 2 km between buildings.
Best for: Large buildings with devices on every network.
How it works
How does a Zonegen installation work?
- 1
Free consultation
Tell us about the building, the signal problem and which networks you need. You get a price guide with no obligation.
- 2
Site survey
An engineer tests signal inside and out, assesses construction and plans cable routes. The survey cost is refunded if you go ahead.
- 3
Installation
Your Cel-Fi system is installed neatly and commissioned. Small sites are usually done in a day; larger sites are scheduled around you.
- 4
Testing and aftercare
Signal is tested throughout before handover. Optional monitoring keeps an eye on performance remotely.
FAQs
Questions about signal boosters for IoT and connected devices
Can a booster prevent IoT device dropouts?
Yes, where dropouts are caused by weak mobile signal. Boosting 4G and 5G at device locations makes connections far more stable.
Does Cel-Fi boost 3G?
No. UK 3G networks have been switched off. Cel-Fi boosts 2G, 4G and 5G, so devices still on 3G need upgrading.
Will it work with BMS, alarms and smart meters?
Yes, for devices using mobile SIMs on the boosted networks. Zonegen checks your device types and networks at survey.
Which networks should we boost for IoT?
Match the networks your SIMs use. One network suits a G41 or QUATRA EVO; mixed fleets suit a G43 or QUATRA 4000e.
How much does an IoT signal booster cost?
A single-network Cel-Fi GO G41 starts from £1,795 and a three-network GO G43 from £5,995. Larger systems are quoted after survey.