Under the direction of Scott Schober, CEO, Berkeley Varitronics Systems (BVS) designs and manufactures world-class quality, innovative, RF analysis and wireless threat detection tools for Fortune 500 companies and government organizations to manage secure facilities and maintain wireless networks.

BVS capabilities and services include custom engineering, prototyping, just-in-time production runs, quality testing, software, tech support, and training.

BVS clients include engineers, technicians, law enforcement, government and military professionals looking for precision wireless solutions at affordable price points.

Cell Phone Detection

Portable and fixed cell phone detection systems for securing corrections, law enforcement, government, TSCM, military, corporate and university facilities wishing to enforce a NO CELL PHONE POLICY.

  • Passive RF (Radio Frequency) and FMD (Ferro Magnetic Detection) – no warrants or court orders required
  • Detects active cell phone use up to 150 feet away (RF) and any device ON or OFF (FMD)
  • Portable and covert devices
  • Highest sensitivity and sensor count in the security industry
  • Sold worldwide to law enforcement and security teams
  • Made entirely in the U.S.A.

Do you know the difference between RF detection and ferrous detection?

Learn More!

SentryHound Cell Phone Security Detection Portal

SentryHound™ cell phone detection security portal is triggered when cell phones (or other ferromagnetic material) pass by its sensors. This type of TSCM installation is especially useful for security personnel looking to detect any cell phones (ON or OFF) as well as some weapons including knives and guns without invasive and time-consuming searches.

  • Detects all cell phones even when switched OFF and battery removed
  • Rugged pressure switch mat ensures only suspects passing through sensors will trigger alarm
  • Detects any ferromagnetic material including cell phones, laptops, tablets as well as knives, guns and other weapons
  • Alarm does not false trigger from jewelry (gold and silver), copper, aluminum, bronze or brass

Manta Ray Cell Phone Detector

Manta Ray™ is the answer to the growing problem of unauthorized, illegal, unsecured & contraband cell phone use in correctional facilities, government buildings, corporate environments, financial institutions, universities & law enforcement agencies.

  • Detects all cell phones even when switched OFF and battery removed
  • Minimize false triggers from common items like keys, belt buckles, coins, watches, etc.
  • Cost effective & simple operation for anyone
  • Runs on standard, removable 9V battery for up to 3 hours

Squid-Lite IoT & M2M Maintenance Tool

A Cost Effective Wireless Carrier Verification Receiver

Squid-Lite™ IoT & M2M verification receiver is designed for 2G, 3G, 4G and LTE installers or electrical contractors maintaining IoT & M2M site installations, cellular modems and antenna placement.

These instruments are rugged, reliable and dedicated IoT & M2M receivers (support for AT&T, Verizon, Sprint & T-Mobile) making them low cost yet indispensable for installers.

Tuned on Custom MNO Frequencies!


  • No SIM activation required
  • All major wireless 2G, 3G and 4G LTE carriers supported (AT&T, Verizon, Sprint & T-Mobile)
  • True RSSI or RSRP values in dBm for realtime 5 carrier specific measurements
  • Handheld, simple operation for a full day using a single battery

4G Analysis & Drive Studies

Portable, calibrated test transmitters and receivers to simulate and analyze 4G LTE, CDMA, UMTS and WiMAX base station coverage for engineers and technicians.


LTE & WiMax

Portable 4G test transmitters and receivers for simulating OFDMA WiMAX 802.16e, 802.11d Mobile, Fixed and LTE base stations and demodulating packets. Spectrum analysis includes 700 MHz up to 5.9 GHz

M2M Installation Tools

Portable, passive receivers for determining the best 2G & 3G carriers for your AT&T, Sprint, Verizon or T-Mobile M2M install site

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