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SureCall Guardian3 Quick Response Public Safety Bi-Directional Amplifier


SureCall Guardian3 Quick Response Public Safety Bi-Directional Amplifier
IN STOCK. Ships same or next business day.
Surecall's most powerful public safety solution

Expected Indoor Coverage:

  • 20,000 sq. ft. with 1-2 bars (-100 dB) of outside signal
  • 40,000 sq. ft. with 3-4 bars (-90 dB) of outside signal
  • 80,000 sq. ft. with 5 bars of outside signal
FREE SHIPPING. 60 day money back guarantee*
LEARN MORE: Turn Key Installation Service
SureCall Guardian3 Quick Response Public Safety Bi-Directional Amplifier
$6,669.00 No tax for orders outside Texas.

About This Product

From low to more bars instantly!

The SureCall Guardian QR (Quick Response) is the most installer-trusted public safety signal booster in USA & Canada. Because SureCall has been the only company to report real coverage expectations and still overdeliver in performance.

With up to +80 dB gain of amplification, it greatly enhances 700 MHz (FirstNet Ready), 800 MHz, and 900 MHz SMR (Specialized Mobile Radio Service) signal for First Responders and other public safety services inside large buildings up to 80,000 sq ft. Supports up to 100+ simultaneous users per band.

Meets NFPA 72, 1221 and IFC 510 standards. NEMA4-rating. Equipped with dry contact 7-pin alarm capability, UPS and Ethernet port enabled remote monitoring.

SureCall is the only cell phone booster name in the market to provide guaranteed results or 60-day money back guarantee and 3-year manufacturer's warranty. Sure signal. Sure coverage. SureCall.

  • Boosts Public Safety 700 MHz , 800 MHz, and 900 MHz SMR for any building to 80,000 sq ft.
  • Works for all phones & cellular devices, all US & Canadian carriers.
  • Complete kit: all parts included, no monthly fees.
  • NFPA and IFC approved
  • SureCoverage Guaranteed: Better signal or 60-days money back & 3 year warranty
FREE Same Day Shipping
30 Day Money Back Guarantee
3 (Three) Year Warranty
100% Secured Checkout

Installation & Deployment

At Signal Boosters we provide full turnkey integration of in-building wireless (IBW) systems that amplify signal indoors, delivering the signal you need to get the job done. From the first call to post-project, Signal Boosters handles every detail personally in-house. Our team of RF engineers, system integrators, designers, and certified signal boost specialists take complete ownership of your project.

1. Assessment
  • Pre-survey
  • Site survey
2. System Design
  • Data analysis
  • Floor plans
  • Equipment & Pricing
3. Installation
  • Installing equipment
  • Optimization
4. Support
  • Documentation
  • Monitoring & support

SureCall Guardian3 QR Product Benefits

  • Virtually eliminates dropped calls
  • Crystal clear voice quality
  • Quickly send & receive text messages and emails
  • Faster internet data (uploads, downloads, and streaming)
  • Wider coverage area & Improved reception
  • Consistent service throughtout the office
  • Reliable connection
  • More bars
  • Longer battery life for phone
  • Always on, always connected

How Does It Work?

A SureCall commercial signal booster for buildings improves 700 MHz (FirstNet Ready), 800 MHz, and 900 MHz SMR by amplifying existing outside signal. It does this with 3 main components:

1 Outside Antenna pulls in weak signal
2 Amplifier boosts signal up to 32X
3 Inside Antenna rebroadcasts better signal
More bars!

Compatible With all Major US and Canadian Networks

The SureCall Guardian3 amplifies talk & text, 3G, and 4G LTE for all major carrier networks except WiMax and iDen.

All US carriers (4G LTE & 3G): AT&T, Verizon, Sprint, T-Mobile, US Cellular, Leap Wireless, C Spire, MetroPCS, etc.
All Canadian carriers (4G LTE & 3G): Rogers, Bell, Telus, Fido, Wind, etc.

Kit Includes:

SureCall Guardian3 QR Amplifier
Power Supply
Mounting Hardware

Tech Specs

SureCall Guardian3 QR Public Safety Signal Booster
Frequencies - Uplink 788-805 MHz; 806-824 MHz; 896-901 MHz (Including D Block)
Frequencies - Downlink 758-775 MHz; 851-869 MHz; 935-940 MHz (Including D Block)
Supported Standards Public Safety 700 (FirstNet), 800 and SMR 900
Input Impedance 50 Ohm
Maximum Gain 80 decibels (dB)
AC Power Transmitter Input AC 110 V, 60 Hz
P1dB 31.5 dBm
Connectors N-Female
Power Consumption 50W
Dimensions 21.5 x 17 x 6 inch
Weight 49.6 lb
UPC 729198496203


This is NOT a CONSUMER device. It is designed for installation by FCC LICENSES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.


The SureCall Guardian3 QR is easy to install, everything included in the kit, and trained customer/tech support
(1-800-470-6777 or to assist you in every step of the way.

  • Guardian3 QR Bi-Directional Amplifier with NEMA Enclosure
    Guardian3 QR Bi-Directional Amplifier with NEMA Enclosure
  • Power Supply
    Power Supply
  • Mounting Hardware
    Mounting Hardware

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Customer Reviews

SureCall Guardian3 Quick Response Public Safety Bi-Directional Amplifier
FREE Same Day Shipping
30 Day Money Back Guarantee
U.S. Based Customer Service
100% Secured Checkout