Smart-Truckers SB-921 Vehicle Boosters
Key Features & Benefits
- South African 3G Data & 2G Voice (Vodacom & Cell C)
- Compatible with more than 90% African Network
- Strong Signal Stability – Clearer calls & improved data
- Multi-User Vehicle Coverage – Supports multiple devices
- ICASA Approved & Legal – Fully compliant for use in South Africa
- Upgradeable System – Supports enhanced antennas and accessories
- Free Delivery Within South Africa – Fast, reliable nationwide shipping
- Expert After-Sales Support – Friendly technical assistance
- 30-Day Money-Back Guarantee – Risk-free purchase
- 3-Year Warranty – Long-term reliability and peace of mind
OVERVIEW
Smart-Truckers SB-921P Vehicle Boosters
Reliable Signal Anywhere You Travel
The Smart-Truckers SB-921P Vehicle Boosters are engineered to deliver reliable mobile signal performance for drivers who depend on strong connectivity while on the move. Whether you are travelling off-road, crossing rural areas, or navigating long highways, this vehicle booster improves weak mobile signals to keep your calls clear and your data connections stable.
Designed specifically for trucks, bakkies, SUVs, caravans, and commercial vehicles, the SB-921P is a trusted solution for drivers, fleet operators, outdoor enthusiasts, and professionals who require dependable communication in challenging signal environments.
Built for Off-Road, Long-Distance & Remote Travel
The SB-921P Vehicle Booster is ideal for off-road journeys, farming routes, mining areas, and remote locations where mobile coverage is often unreliable. Its compact indoor antenna design allows for easy installation inside the vehicle without cluttering the cabin, while still delivering strong and stable signal distribution.
This vehicle booster enhances 2G voice calls and 3G data mainly for Vodacom & Cell C, reducing dropped calls, improving voice clarity, and stabilising mobile internet connections. Whether you rely on your phone for navigation, coordination, emergency communication, or basic connectivity, the SB-921P ensures your signal performs smoothly and consistently throughout your journey.
Flexible Use in Vehicles, Caravans & Stationary Setups
One of the key advantages of the Smart-Truckers SB-921P Vehicle Boosters is their flexibility. While optimised for mobile use in vehicles, the system can also be adapted for caravans, boats, and stationary vehicles. In these cases, additional accessories such as a longer range omni-directional outdoor antenna upgrade may be required to achieve optimal performance.
This adaptability makes the SB-921P a popular choice for:
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Overland travellers
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Caravan owners
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Fleet vehicles
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Service trucks
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Agricultural and construction vehicles
Powerful Gain & Stable Performance
With a maximum gain of 65 dB, the SB-921P delivers effective signal amplification without compromising network stability. The 180-degree indoor antenna is designed to distribute signal evenly throughout the vehicle, ensuring coverage for multiple users and devices at the same time.
This vehicle booster supports 2G & 3G primarily for Vodacom & Cell C most of the time, making it a practical, future-ready investment for drivers who carry multiple devices or switch between network providers.
Network Compatibility & Legal Use
The Smart-Truckers SB-921P supports:
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2G voice calls
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3G data services
It is ICASA approved, fully compliant, and legal to use across South Africa and many African territories. This ensures peace of mind for both individual users and businesses operating fleets across borders.
Key Features & Benefits
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Vehicle Boosters designed for trucks, SUVs & bakkies
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Improves 2G voice calls & 3G data
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Strong 65 dB gain for weak signal areas
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180° indoor antenna for full vehicle coverage
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Supports multiple users simultaneously
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Upgradeable antenna and amplifier options
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Compact, durable, and easy to install
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ICASA approved and compliant
Ideal for Professional & Everyday Use
The Smart-Truckers SB-921P Vehicle Boosters are widely used by:
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Long-haul truck drivers
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Fleet operators
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Farmers and rural workers
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Construction and mining professionals
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Outdoor adventurers and travellers
By strengthening mobile signal inside the vehicle, this system improves safety, productivity, and communication in areas where mobile coverage is unreliable or inconsistent.
Expert Support When You Need It
Our team is always available to assist with product selection, compatibility checks, accessory recommendations, and installation advice. If you are unsure which setup best suits your vehicle or travel needs, please do not hesitate to contact us — we are here to help you get the strongest possible signal performance.

What’s Included In The Box
- Mini Dual Band 900/2100Mhz Mobile booster
- Full Car Conversion Kit
Officially Certified

Product Specifications
| SKU | SB-921P |
| Gain | UL 30~60dB DL 33~65dB |
| Power | UL Max 20dBm
DL Max 19dBm |
| Coverage | 500 m2 |
| Frequency | GSM900: UL 890~915MHz DL 935~960MHz
WCDMA 2100: UL 2100~2180MHz 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 | < 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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