Cel-Fi GO4 Building Indoor & Outdoor Pack (Stationary)
Cel-Fi GO4 (G41) represents the latest in 4G cellular repeater technology. Building on the success of the GO2 model, GO4 has a higher output power (+20 dBm), providing the largest coverage area of all GO models.
Cel-Fi GO4 (G41) represents the latest in 4G cellular repeater technology. Building on the success of the GO2 model, GO4 has a higher output power (+20 dBm), providing the largest coverage area of all GO models.
GO4 operates on more frequency bands and can be easily switched between Telstra, Optus and Vodafone-TPG (one carrier at a time) should you change service providers. Expanding on GO2’s dual-band functionality, GO4 supports carrier aggregation with 40 MHz of relay bandwidth.
This pack is ideal where you have reception problems at a site and you want to increase mobile signal both indoors and outdoors using one Cel-Fi GO unit. The external antenna is affixed on the rooftop collecting the mobile signal from outside and transferring it to Cel-Fi GO. The indoor panel antenna boosts it internally (within the house) whilst the MARS Antenna is cabled to the outdoor area and boosts a targeted signal external to the building. This set-up has been used successfully in cattle-yard, farming and residential applications.
FEATURES:
- 700L/850/900/1800/2100/2600 MHz (700 bands not supported on Vodafone)
- 3G, 4G, VoLTE, NB-IoT (GO4 has 5G capabilities, but is currently not enabled or approved)
- Carrier Switching using WAVE App between Telstra, Optus or Vodafone – one carrier at a time
- Up to 3000 m2 coverage area
- Two band simultaneous relay
- Total System Relay Bandwidth – Up to 40 MHz
- Remote Monitoring, Control and Alert Capabilities via WAVE Portal (for approved installers)
- Ethernet Port for connection to internet source for live monitoring
- 1-Year extra FREE WARRANTY (for a total of 3 years)
PACK INCLUDES:
- Cel-Fi GO4 1/3/5/7/8/28L/40 Stationary Repeater (Switchable between Telstra, Optus and Vodafone-TPG) – one carrier at a time
- Powertec exclusive offer – 1-Year extra FREE WARRANTY (for a total of 3 years)
- Choice of internal antenna:
- Blackhawk Wall Mount 698-4000MHz 5/7dBi Panel Antenna -150dBc PIM
- Blackhawk Slim 4G-5G Ceiling Antenna Low PIM
- Choice of external antenna:
- LPDA 698-4000MHz 12/14dBi
- Omni High Gain 698-2700Mhz 6dBi
- 2 x 10m PT240 LSHF cable
- 1 x 6m PT240 LSHF cable
- MARS Panel Antenna 698-2700 5dBi plus mount
- INSTOCK Wireless 700-2700Mhz 2 Way DAS Splitter/Combiner SMA/F, RoHS, High Isolation
Can I have multiple indoor antennas connected to the GO4? Yes, you can. There may be rare occasions where a single service antenna (one that provides your phone with signal) is not adequate enough to cover an area. This could be due to the building size, structure or the fact you want signal inside and outside. Chat to our team if you would like to know more.
AJAX Personal Safety Alarm Kit
Stay protected with the AJAX Personal Safety Alarm Kit, a complete wireless panic button system designed for homes, rentals, carers, and small businesses.
✅ One press = instant alert to nominated contacts via the AJAX app
✅ Hub + 3 panic buttons with lanyards & holders included
✅ Pre-configured & tested – setup takes just 10 minutes
✅ Optional 4G backup (multi-network SIM) – stays online even if WiFi fails
This is more than a cheap gadget — it’s a professional duress alarm system trusted worldwide.
Why Choose a Personal Safety Alarm?
Every second matters in an emergency. Whether it’s an Airbnb guest who
feels unsafe, a carer responding to a fall, or staff facing a
threatening situation — fast alerts can make the difference. The AJAX
Personal Safety Alarm Kit puts that response at your fingertips with one
simple press.
Discover more
How it works
- Press → The panic button is worn on a lanyard, wrist, or mounted holder.
- Alert → Instantly notifies your nominated contacts via the AJAX app.
- Respond → Friends, family, carers, or staff know exactly what’s happening.
- Stay Connected → With the optional 4G backup SIM, the system stays online even if WiFi is down.
- Professional-Grade Reliability
Professional-Grade Reliability
This isn’t a consumer gadget. AJAX is a European security brand trusted in homes and businesses worldwide. Every hub and button is encrypted, tamper-protected, and built for 24/7 reliability.
- Backup battery keeps the system running during power outages.
- Encrypted wireless communication prevents interference.
- Built to professional security standards, not DIY toys.
Designed for Real Situations
Airbnb & Short-Stay Rentals
Protect guests & reputation. Provide peace of mind and reduce liability with a system that’s simple to install and easy to use.
NDIS & Aged Care
Carers & families get fast alerts. Ensure carers and family are alerted immediately in case of a fall, emergency, or distress situation. Perfect for independent living with extra peace of mind.
Small Businesses
Silent duress button for staff. From salons to gyms to retail stores, staff can discreetly trigger a duress alert without drawing attention.
Frequently Asked Questions
No. The system alerts your nominated contacts instantly. This means no ongoing monitoring fees.
The AJAX hub has a built-in backup battery that keeps the system running.
No. With the optional 4G SIM, it stays online even if WiFi or NBN fails.
Yes. The panic button can be worn around the neck, on the wrist, or mounted in key locations for easy access.
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