Cel-Fi GO is one of the few cellular signal boosters carrier-approved for use in New Zealand, certified for Spark, One NZ and 2degrees. That approval matters: unapproved boosters can interfere with the mobile network and are illegal to operate here. Cel-Fi GO comes in building, vehicle, caravan and marine configurations, each engineered for its own environment rather than a generic one-size-fits-all box. Mobile Systems supplies, installs and services the full Cel-Fi GO range from our base in Mount Maunganui, with on-site installation across the Bay of Plenty, Coromandel, Rotorua, TaupΕ and Waikato.
Building & Fixed Premises Boosters
For offices, warehouses, workshops and rural buildings, a fixed booster covers the whole premises from a single install rather than boosting one device at a time.
Cel-Fi GO G41 Building Pack
Carrier-approved building booster that covers up to 1,500mΒ² per unit from a single donor antenna. The right starting point for most commercial premises with patchy indoor coverage. View Cel-Fi GO G41 Building Pack
Vehicle & Fleet Boosters
For vehicles that move between coverage areas, a mobile booster keeps calls and data connected on the move rather than dropping out between cell towers.
Cel-Fi GO Mobile Magnetic Pack
Magnetic-mount vehicle booster kit for quick fit-and-remove installs, suited to fleet vehicles that need signal boosting without permanent antenna mounting. View Cel-Fi GO Mobile Magnetic Pack
Cel-Fi GO Mobile Pack
Permanent in-vehicle booster kit for utes, trucks and 4WDs doing regular work in fringe coverage areas, built for a fixed, professional install. View Cel-Fi GO Mobile Pack
Caravan & RV Boosters
Caravan and motorhome trips often mean camping well outside strong coverage. A dedicated caravan booster keeps you connected without draining the vehicle's own setup.
Cel-Fi GO Caravan Pack
Purpose-built booster kit for caravans and motorhomes, designed for reliable signal at remote campsites and holiday parks around the country. View Cel-Fi GO Caravan Pack
Marine Boosters
Coastal and harbour signal drops off fast once you're away from shore. A marine-rated booster is built to handle salt spray and vibration while keeping a usable signal on board.
Cel-Fi GO Marine Pack
Marine-rated booster kit for boats and launches, built to keep calls and data working further from shore than a phone alone can manage. View Cel-Fi GO Marine Pack
Why Order Cellular Signal Boosters Through MSL
Mobile Systems has been solving NZ communication problems since 2000, over 25 years, from our base in Mount Maunganui. Every Cel-Fi system we supply is professionally installed and configured for your specific carrier, not a generic setup.
On-site installation and support covers the Bay of Plenty, Coromandel, Rotorua, TaupΕ and Waikato directly. Outside that area, we install and support through our trusted nationwide installer network, with every unit backed by our in-house workshop.
Common Questions
Are cellular boosters legal in New Zealand?
Only carrier-approved boosters are legal to operate. Unapproved units can cause interference with the wider mobile network. Cel-Fi GO is approved for use on Spark, One NZ and 2degrees.
Do I need professional installation?
We recommend it. Correct antenna placement and separation between the donor and server antenna is what determines how well the system performs, and self-installed units are a common cause of poor results.
Will a booster work if I have zero signal at all?
No. A booster amplifies an existing weak signal, it can't create one from nothing. If there's genuinely no signal reaching the site at all, a satellite solution like Starlink is a better fit.
Not sure which Cel-Fi kit suits your site or vehicle? Talk to our team for a recommendation based on your building, fleet, or boat.