SKU: ANT-ULTRA

4G YAGI Directional Antenna – Ultra High-Gain

£134.40 ex VAT In stock

The ULTRA High-Gain YAGI External Directional Antenna is engineered to deliver exceptional signal strength and reliability for GSM/4G applications. Its directional design focuses reception and transmission in a specif...

Works with any alarm panel, fault detection system or sensor
4 configurable alarm inputs and 4 configurable outputs
Alarms by SMS, voice call, email (WebAlarm) and DC09/Contact-ID to ARCs
4G-LTE on all four UK networks with an optional EvolveSIM
Set up by web or SMS, with over-the-air firmware updates

Connectivity (SIM) Own SIM · Included

Use your own SIM Micro SIM. Voice, SMS and data for full functionality Included EvolveSIM Per SIM per month: 100MB data, 50 minutes voice, 25 SMS. No carryover. UK and EU, ControlFreq hardware only. Not for intercoms or door entry. £120 + VAT / year

WebAlarm Monitoring Not selected

WebAlarm monitoring not selected WebAlarm cloud monitoring (optional) then from ~~£7.50/mth per unit~~ after 30 days Offer£5/mth per unit for the first year, then £7.50/mth. Setup included. 30 days' notice to cancel. £5/mth Self-managed SMS, voice call and ARC signalling direct from the unit Included OEM Branded UI Your own branded monitoring service, with our support. One-off integration fee plus annual licence POA

The first 12 months of EvolveSIM and WebAlarm are paid today. We'll send you a GoCardless direct debit mandate after your order for the following years.

Optional add-ons 0 added

Subtotal £134.40 ex VAT

£161.28 inc VAT (20%)

We're a B2B solution provider. Trade customers can sign up for trade pricing.

Get trade discount Outside the UK? Request a shipping quote

Talk to an engineer · 020 3478 0784

Specifications

Technical details

SKU: ANT-ULTRAThe ULTRA High-Gain YAGI External Directional Antenna is engineered to deliver exceptional signal strength and reliability for GSM/4G applications. Its directional design focuses reception and transmission in a specific direction, making it ideal for installations in areas with weak signal coverage or where interference reduction is crucial. Suited for SIM running a single network, not multi-network SIM where the directional of incoming signal can vary. Contact us for advise if unsure.Key Features: High-Gain Performance: Provides significant signal amplification, enhancing connectivity for GSM/4G devices. Directional Design: Focuses signal reception and transmission, reducing interference and improving performance in targeted areas. Robust Construction: Built to withstand various environmental conditions, ensuring durability and longevity. Versatile Compatibility: Suitable for a wide range of GSM/4G applications, including remote monitoring systems, alarm communicators, and access control devices.

Network	4G-VoLTE with 3G/2G fallback
Module	Global 4G VoLTE module
SIM	Micro SIM. Voice, SMS and data SIMs give full functionality; data-only SIMs do not support voice calls
Antenna	SMA male connector
Connectivity	EvolveSIM optional. Per SIM per month: 100MB, 50 min voice, 25 SMS. No carryover. UK and EU, ControlFreq hardware only. Not for intercoms or door entry.
Event transmission	SMS, voice call, email (WebAlarm), DC09/Contact-ID (ARC)

Power input (no battery)	12–24V DC
Power input (with battery)	13.8–15V DC
Power consumption	250mA transmitting / 40mA idle
Backup battery	12V 1.2Ah (optional)
Auxiliary output	12V DC, 300mA max

Inputs	4 alarm inputs (configurable), plus input disable and tamper
Outputs	4 digital outputs (configurable)
Phone line output	PSTN simulator
Status indicators	4 LEDs: blue signal, red fault/alarm/error, green input status, amber network status

Enclosure	Compact metal, surface mounted (not IP rated)
Optional enclosure	IP56
Dimensions	155 × 220 × 58 mm
Operating temperature	-10°C to +50°C
Weight	60g (PCB) / 180g

Product code	PRO+4G
Grade	Grade 2
Configuration	Web (mobile-friendly) and SMS
Firmware updates	Over-the-air (F-OTA)
Cloud monitoring	WebAlarm (optional)
Warranty	3 years

How it works · with WebAlarm cloud

From panel to phone, in one path.

WebAlarm is optional. It logs fire, panic, intruder, leak and equipment-failure alarms in real time, alerts on mains power, battery and signal loss, and posts to your Slack channels by default. It also takes Contact-ID and SIA-DC09 signals from devices made by others.

Explore WebAlarm

Alarm panel

Any panel or sensor triggers one of 4 inputs
PRO+4G

Picks up the signal and sends it over 4G
4G-VoLTE network

Secure mobile connectivity, with optional EvolveSIM
WebAlarm cloud

Logs fire, panic, intruder, leak and fault alarms, plus power, battery and signal, in real time
You / your ARC

Slack, SMS, voice call, email, or DC09/Contact-ID to your ARC

WebAlarm cloud

See every site from one screen.

Alarms, power and signal for every unit, on a map, in a table and in reports.

Explore WebAlarm

Questions, answered.

Can't find what you need? Call 020 3478 0784 or email hello@controlfreq.co.uk

When is a Yagi the right aerial?

SKU ANT-ULTRA is directional, for a weak signal or where interference needs to be reduced. The description says it suits a SIM on a single network, not a multi-network SIM, because the incoming direction can change.

What can it connect to?

GSM/4G equipment including remote monitoring, alarm communicators and access control.

Integration & OEM

A control layer built around your operation.

We add management, visibility and control on top of the alarm, communication and access control systems you already run. From white-label portals to full OEM builds, we work end to end.