SureCall Flex2Go 3G Booster Kit (SC-DualM-50-KIT)

by SureCall

50dB dual-band amplifier kit that boosts in-vehicle 2G/3G voice and data coverage


In stock. Ships in 24 to 48 hours.

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Product description

The SureCall Flex2Go Kit is a high-quality bidirectional booster that enhances cellular signals for cars, motor homes, and other vehicles. It has a 50 dB mobile amplifier that improves 2G/3G voice and data reception. It works with all major US carriers.

This kit does not boost 4G LTE signal. If you need to boost 4G LTE signal, please see the SureCall Fusion2Go kit.

This vehicle kit includes the inside/outside antennas, amplifier, and vehicle power supply. The Flex2Go kit comes with a three year warranty. Cable and antenna accessories can be added to this system for portable applications. Please call for details.


  • Easy to set up
  • Fully compliant with new FCC certification standards and approved by all major US carriers
  • Most powerful mobile booster permitted by the FCC
  • Dual Embedded CPU
  • Eight RSSI detectors for all inputs and outputs
  • Auto Gain Control (AGC) and manually adjustable dB gain and attenuation
  • Quality metal construction, durable and resilient
  • Reconfigurable to fit all size vehicles, with or without sun roof

Kit Contents

  • SureCall Flex2Go 50 dB Dual-Band signal booster
  • SC-200W Magnetic-mount outside antenna with attached cable RG-174
  • SC-110W Inside antenna with attached cable RG-174
  • DC car charger for vehicle
  • Velcro® and screw-mounting kit

Outside Antenna

The SureCall SC-200W Magnetic Mount Antenna is a 12” dual band antenna with 3dB/6dB of gain. The antenna is made of stainless steel and is fully weather-proof. It is an omni-directional antenna and is able to locate signal on all sides up to 35 miles away from a cell tower. Omni-directional antennas receive signal from all directions, and so the antenna needs to be installed in a vertical position.

Inside Antenna

The SC-110W is a convenient, lightweight directional antenna designed for inside vehicle use. It provides 3 dB gain and is equipped with a 9 ft. 10 in. cable.


The SureCall Flex2Go 3G Booster Kit (SC-DualM-50-KIT) is compatible with the following networks:

Carrier Supported services Unsupported services
Verizon 2G Voice 3G Data 4G LTE
AT&T 2G Voice 3G Data 4G HSPA+ 4G LTE
Sprint 2G Voice 3G Data 4G LTE
T-Mobile 3G Data 4G HSPA+ 2G Voice 4G LTE

The SureCall Flex2Go 3G Booster Kit (SC-DualM-50-KIT) kit is also compatible with Canadian networks, though they are not listed above. Check our international carriers page for more information.

Supported frequency bands (MHz): 824-849 / 869-894 / 1850-1910 / 1930-1990


Like almost all of our products, the SureCall Flex2Go 3G Booster Kit (SC-DualM-50-KIT) can be installed by anyone who feels comfortable doing simple home repairs and running cabling. If you’re not comfortable doing that kind of work, you might consider finding a local electronics installer or asking a friend.

Unlimited free technical support:

Anytime you purchase from RepeaterStore, you get unlimited free technical support from our signal experts. Whether it’s installing a kit or troubleshooting a problem, we’re here. In over 7 years of being in business we’ve helped over 20,000 customers insall kits and improve their signal.

Have a question now? Call us from 8am to 5pm PST: 1-800-761-3041.


UPC 0856019003361
Weight 1.5 lb
Dimensions 8" x 1.25" x 5"
Frequency 824-849 / 869-894 / 1850-1910 / 1930-1990
Impedance 50 Ohms
Connector type FME
Cable type CM240

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