Smart-Truckers SB918 Vehicle Boosters 
SBGJ 918 Mini 2G Booster & All LTE 4G
Key Features
- ALL SOUTH AFRICAN GSM VOICE CALLS, SMS & 4G LTE DATA
- 250 SQUARE METERS COVERAGE AREA
- UPGRADED GAIN LEVEL 60/65DB
- OSCILLATION ALARM SUPPORTS
- 30 SIMULTANEOUS USERS
- 3 YEAR WARRANTY
OVERVIEW
SBGJ 918 Mini Dual Band  2G Booster & All LTE 4G
Design to provide users with significant signal improvements for all South African networks voice calls, text and high speed LTE 4G Data on your mobile phone and devices. (Note that Telkom Network may not experience boosted LTE enhancements as they operate 4G on a different frequency in some areas). The latest digital design features a bunch of advanced functions that will help those looking to boost and improve their voice calls and LTE 4G data speed on their mobile phone to benefit just that.Â
Our SBGJ Mini 918 Dual Band is compatible with all South African & African Networks that relies on 900/1800MHz frequencies for their voice calls/text and high speed 4G LTE for a wider coverage area of up to 250 Sqm2.
We are glad to offer a 3 year manufacturer free replacement warranty on all our products and even better a 30 day Money back guarantee. It is simple and straight forward, just try it and if for any surprising reason. If the result you get is less than your expectation, feel free to give us a call and we will be happy to help.
It comes packed with an easy to use instruction manual that will guide you through all the steps needed to ensure all your signal coverage expectations are met. The SBGJ Mini 918 Dual Max model will improve signal coverage for up to 250 sqm2Â and will serve up to 25 simultaneous users.
There is also an EASY TO WORK with installation Manuals that comes with every booster that you purchase from us making it an easy plug and play equipment.
Once set up is completed as described below and your device is switched on, you will start experiencing full phone signal in the intended coverage area.
Setting Up Your SBGJ Mini 918 Dual Booster
All our boosters are designed around basic and quick installation procedures (Plug and play).
AN OUTDOOR ANTENNA: This accessory is one of the most required kits for booster installation. It is mounted outside the building mostly the roof or highest point in the building and the key purpose is to pull signals from outside via the coaxial cable to the Booster, this accessory is included free of charge in the box.
10 METRES COAXIAL CABLE: The outdoor antenna on the roof is attached to the coaxial cable on one end and the second end is connected to the mobile booster to be mounted inside the home. The cable serves to transmit signals into the repeater from the external antenna.
SIGNAL BOOSTER: The mobile phone booster is an integral aspect of the puzzle, as soon as the signal is transferred from the roof antenna through the coaxial cord, it helps to amplify the mobile phone signal in the building through the indoor antenna.
INDOOR ANTENNA: This is the distribution antenna that the mobile booster uses to transmit this signal internally using these high-power indoor antennas.
AC/DC POWER SUPPLY:Â The AC/DC power supply and power plug supplies the repeater with all the currents it need to function.
What’s Included In The Box
- 1 x SBGJ Mini 918 Booster
- 1 x Outdoor antenna
- 1 x 10 meter coax cable
- 1 x AC/DC Power Supply
- 1 X Indoor Whip antenna
- 1 x Easy to work with Installation Manual
.
Specifications
| SKU | SBGJ 918 |
| Gain | UL 29~60dBDL 34~65dB |
| Power | UL Max 20dBm
DL Max 19dBm |
| Coverage | 250 m2 |
| Frequency | GSM900: Â UL 890~915MHz DL 935~960MHz
GSM1800: UL 1920~1990MHz DL 2110~2180MHz |
| Ripple in Band | ≦ 5dB |
| Spurious Emission |  ≦ -30dBm ~ -36dBm |
| Max Noise Figure | ≦ 6dB |
| Return Loss | ≦ 3dB |
| Time Delay | ≦ 0.5μs |
| MTBF | > 50000hours |
| Power Supply | AC100~240V 50~60Hz / DC12V 2A (Included) |
| Power Consumption | Â < 10 Watt |
| Impendence | 50 Ω |
| Connector | N-Female as standard |
| Cooling | Heatsink convection cooling |
| Dimensions (DxWxH) | 230x130x34mm |
| Weight | 1200 Gram |
| Environment Conditions | IP 40 |
| Humidity | < 90% |
| Operating Temperature | 10°C – 60°C |
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REVIEWS
David Green – Randburg –
We installed this in our boardroom because our fibre kept failing. It boosted all our staff’s mobile signals instantly. We now use mobile data without stress.
Precious Mabuza – Tzaneen –
Affordable, effective, and simple to use. This product is perfect if you want to boost signal in one room. It really does deliver what it promises.
Mandla Ngwenya – Nelspruit –
This booster brought me peace of mind. No more walking around the house looking for signal. I can relax in my room and still get full mobile access.
Emma Jacobs – Hout Bay –
My daughter uses it for online classes. Her Zoom calls don’t lag anymore. It’s just installed in her room and the results are excellent.
Sipho Dlamini – Mbabane, Eswatini –
Signal used to drop constantly in my room. Now I have uninterrupted calls and better LTE coverage. I didn’t expect it to work this well.
Naledi Radebe –
It’s amazing what this little device can do. Calls are smooth, data is fast, and SMS goes through without a delay. Exactly what I needed for my study room.
Joseph Moyo – Maputo, Mozambique –
For small apartments or single rooms, this product works wonders. I now make long-distance calls with no problem. 4G and sometimes even 5G data too!
Liesel Groenewald – Paarl –
I paid via EFT, received the booster quickly, and within 20 minutes after installation I had full bars for voice and 4G. I live in a brick house, so I installed it near a window on top of my chimney and it works perfectly for my room.
Musa Mthethwa – Richards Bay –
I used to step outside just to send an SMS. With this installed in my home office, I now get stable signal for everything. Fast and reliable.
Susan Matlala –
Great little booster. I get 4G and can even stream Netflix in my room now. Before, I had no bars. It’s small but powerful.
Farai Mutasa – Harare, Zimbabwe –
I run a small online shop from my room. Signal was terrible. This booster helped me stay connected and close sales. Clear calls and faster LTE. I’m saving and making more money now.
Chantelle Botha – Port Elizabeth –
We couldn’t use our phones in the baby’s room. Now the 4G signal is strong and stable. Simple device, big impact. Highly recommended.
Teboho Mokoena –
I use it in my bedroom because I do everything from there—work, study, calls. The improvement is real. LTE speeds are now stable. Setup was easy too.
Janine Steyn –
I was losing business because clients couldn’t reach me. This signal booster fixed that immediately. Voice calls, SMS, and WhatsApp all work smoothly now. Perfect for a one-room office.
Bongani Molefe –
For anyone living in a signal dead spot, this device is a miracle. I can finally make voice calls and browse using LTE. Bought it via EFT and it arrived quickly. I should’ve done this sooner.
Karen Pillay –
I installed it in my lounge and instantly got full 4G bars. Calls used to drop all the time—now I talk for hours with zero issues. It even picks up 5G sometimes! Great value for the price.
Themba Nkosi –
This booster brought life back to my home office. I now make crystal-clear calls and run my side hustle on LTE with no interruptions. Perfect for my small flat. Don’t overthink it—just buy it.
Lauren Daniels –
I couldn’t even make a proper call in my bedroom. Now with this signal booster, I get full bars on Vodacom and fast 4G data. The rest of the family can even get up to 5G on there mobile phones now. I work online, and this changed everything. Ordered online, paid with my credit card. Delivered in two days. Simple and effective.