SureCall DualForce

by SureCall

Powerful enterprise level signal booster solution for all major carriers Voice/3G signal coverage up to 25,000 sq ft.


In stock. Ships in 24 to 48 hours.

Product options:

SureCall Logo Master Reseller
Free, fast shipping
30-Day Money-Back Guarantee
3 Year Warranty
Unlimited free expert support

Product description

The SureCall Dual Force dual-band cell phone signal booster is a commercial-grade kit for offices, industrial buildings, institutions, housing complexes and more. Each DualForce amplifier kit provides enhanced cellular and data reception for all major carrier coverage in areas of 20 - 25,000 square feet and supports a minimum of 100 simultaneous users. This powerful enterprise grade signal booster includes adjustable gain control and automatic shut-down for network protection.

Please note that it does not boost 4G LTE. If you need 4G LTE compatibility, please see the SureCall Force5 enterprise level signal booster kit.


  • Fully compliant with new FCC certification standards
  • Software upgradeable in the field
  • Dual Embedded CPU
  • Independently reconfigurable for each band
  • Independent digitally adjustable uplink and downlink
  • Eight RSSI detectors for all inputs and outputs
  • Automatic shut-down for network protection
  • Highly configurable with options for different antennas according to your needs

Outside Antenna

The SureCall Dual Force kit comes with a choice of two outside antennas:

The SC-100-L Omni Outdoor Antenna has 8dB gain. Omni antennas receive and send signals in a 360º hemispherical radius. They can receive signals from multiple cell towers and is best for boosting signal on many different carriers. They are excellent in most situations where the existing outside signal strength is moderate to strong. If the outside signal is weaker than that, you may need the directional yagi antenna instead. We have a guide to testing your outside signal strength here.

The SC-230W-S Yagi Outdoor Antenna has up to 10dB of gain. It is a directional antenna that can reach cell towers up to 30 miles away. It needs to be set up pointing in the direction of the cell tower, and because it is directional it will only pick up signal in that direction. It’s very powerful at picking up weak signal in one particular direction, and we recommend it for situations where existing outside signal is weak, and you only want to boost coverage for one carrier (or if more than one carrier has a cell tower in that direction). If you need to boost signal coming from different directions, it is possible to set up more than one yagi antenna. Contact us for more help with this.

Inside Antenna

The SureCall Dual Force kit also has a choice of two inside antennas:

The SC-222W Omni Dome Antenna is a multi-band omni-directional plastic dome antenna with that gathers signals from all sides. It has 6dB gain and is designed for central locations with 360º coverage. The range of the antenna is dependent on three factors: 1) physical obstructions, 2) power generated by the booster and 3) reception from outside signal received and distributed by the outside antenna. Besides the antenna itself, parts include mounting equipment. It needs to be mounted to the ceiling for best results and you will need to run a cable to the back of the ceiling.

The SC-248W Panel Antenna is a directional antenna with up to 10dB gain. Panel antennas allow optimum reception to targeted areas. It can be mounted to either the wall or ceiling.

Number of Inside Antennas

The Sure Call Dual Force kit can be ordered in multiple sizes of 1,2, or 4 inside antennas. The inside antennas can be either the 222-W Omni Dome Antenna or the 248W Panel Antenna.

The standard kit comes with one inside antenna, one 30’ coax cable, and one 75’ coax cable.

The two-antenna kit comes with two inside antennas, a 2-way splitter, one 30’ coax cable, and two 75’ coax cables.

The four-antenna kit comes with four inside antennas, a 4-way splitter, one 30’ coax cable, and four 75’ coax cables.

Kit Contents

  • SureCall Dual Force Amplifier
  • SureCall Omnidirectional Outside Antenna SC-100-L OR SureCall Yagi Directional Outside Antenna SC-230W
  • 1, 2, or 4 SureCall Dome Antenna SC-222W OR SureCall Panel Antenna SC-248W
  • 1x30ft. SureCall Ultra Low-Loss CM400 Coax Cable SC-400-30NN
  • 1, 2 or 4 x 75ft. SureCall Ultra Low-Loss CM400 Coax Cable SC-400-75NN
  • 2-way splitter (with two antenna kit) SC-WS-2
  • 4-way splitter (with four antenna kit) SC-WS-4

Lightning Surge Protector

We recommend using a lightning surge protector in most cases, but particularly if you'll be installing the kit in an area with frequent lightning. The lightning surge protector should be installed in line with the cable and near the amplifier, and should be properly grounded.

How it works

how a cell phone booster works
1 - Outdoor antenna

The outdoor antenna receives and transmits signal to nearby cellphone towers. Outdoor antennas can be either directional or omni-directional.

2 - Cellular amplifier

The amplifier (or "repeater") boosts the signal coming to and from and going to the cell phone tower. The "gain" of the amplifier describes how strong the amplification is - you'll see that word scattered across our product pages.

3 - Indoor antenna

The indoor antenna rebroadcasts the signal inside the building. Some kits have more than one indoor antenna to help distribute the signal.


The coverage area you can expect from any signal booster kit depends on the signal strength outside the building.

Outdoor Signal Estimated coverage area
Strong outdoor signal (5 bars) up to 25,000 sq. ft. coverage
Medium outdoor signal (3-4 bars) up to 20,000 sq. ft. coverage
Weak outdoor signal (1-2 bars) up to 15,000 sq. ft. coverage
Note on Yagi antenna:

If you use a yagi outdoor antenna, you can expect a 1.5x greater coverage area. However, you should expect to only improve coverage for one network. Read more about outdoor antennas here.


The SureCall DualForce 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 DualForce 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 DualForce 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.

Product video


UPC 0856019003477 (SC-DualO-72-OD-KIT)
856019003484 (SC-DualO-72-OP-KIT)
856019003477 (SC-DualO-72-OD2-KIT)
856019003484 (SC-DualO-72-OP2-KIT)
856019003477 (SC-DualO-72-OD4-KIT)
856019003484 (SC-DualO-72-OP4-KIT)
856019003743 (SC-DualO-72-YD-KIT)
856019003750 (SC-DualO-72-YP2-KIT)
856019003743 (SC-DualO-72-YD4-KIT)
856019003750 (SC-DualO-72-YP4-KIT)
Weight 8.0 lb
Dimensions 10.5" x 7.5" x 2.0"
Frequency 824-849 / 869-894 / 1850-1910 / 1930-1990 (SC-DualO-72-OD-KIT)
824-849 / 869-894 / 1850-1915 / 1930-1995 (SC-DualO-72-OD4-KIT)
Gain 65dB - Cellular / 72dB - PCS
Impedance 50 Ohm
Noise 5dB
Output power 1 Watt EIRP
Power supply AC 110 V, 60 Hz.
Coverage 15000 sq ft (1 coverage with weak signal)
20000 sq ft (2 coverage with medium signal)
25000 sq ft (3 coverage with strong signal)

Customer reviews

Satisfaction guarantee icon

30 Day

Satisfaction Guarantee

We stand behind the products we sell. We’ll accept a return anytime within 30 days if you’re not happy with your purchase from us.

View our return policy

Cellphone booster kit installation icon

Free & Fast


Any order over $99 ships free. And we get packages out the door quickly: 82% of orders are shipped within 24 working hours.

Read more

Cellphone booster kit installation icon

Large Building?

We can help

Our signal experts have helped design and install kits in buildings of over 200,000 sq ft. Let us help you find the right product.

Get in touch