Proton T-4
DoD Approved
 Hard Drive & Tape Degausser

Download Proton T-4 pdf Brochure

  • Listed on NSA's Evaluated Product List
  • Complies with DoD Requirements
  • Self Check Preformance Verification
  • Fully Automatic
  • Patented Reverse Polarity Technology
    Creates 20,000 Gauss Positive and 20,000
    Gauss Negative
  • FAST & EASY to Use
  • Light Weight and Portable
  • CESG and CE Approved
  • Made in the USA in ISO 9001 Facility
  • Shipping Case Option Available
  • 1-year Warranty
  • Extended Warrantees Available


The Proton T-4 produces a bi-directional field which provides 20,000 Gauss positive field and a 20,000 Gauss Negative field. The T-4 achieves this by using a unique, patented "Reverse Polarity". Other degaussers may have either a positive or a negative pulse, but only one. The T-4 has both and it is fully automatic. This ensures complete and permanent erasure of your data and will protect your sensitive information for years to come. The T-4 now has a LCD screen and internal Gaussmeter for performance verification.


  • Listed on the National Security Agency's (NSA) Evaluated Products List (NSA EPL-Degausser) and complies with DoD requirements for destroying classified information on magnetic media.
  • Internal software requires all parameters (capacitor voltage, switch, etc.) are present prior to the "Go" LED display. If any problem exists that will compromise degaussing, the "Go" LED will not display. This software guarantees that each degauss cycle delivers sufficient strength and consistent performance. 
  • Patented "Reverse Polarity" Electro Magnetic Pulse (EMP) technology. 
  • Fully automatic operation: no drawer to open and close, simply insert media into top slot and push start button. 
  • Lightweight and portable design enables table top or floor operation.
  • Manufactured in the USA in ISO 9001 certified facilities.


  • Permanent destruction of confidential and classified data.
  • Compliance with recognized standards and regulations, including FACTA, HIPAA, GLB, DPA, etc.
  • Sanitizes both longitudinal and perpendicular recorded media and is projected to reliably degauss future media with increased coercivities and higher oersteds (Oe).
  • Stores energy from previous cycles to reduce subsequent cycle times and save energy.
  • Simple to use and fits easily into existing operations. 


Shipping Case (with wheels): Extended Warranty, Mobility Cart, 12-Volt Battery Operation, Gaussmeter. 

Technical Specifications

Field Strength

Reverse Polarity Technology creates 20,000 Gauss Positive & 20,000 Gauss Negative

Duty Cycle


Erasure Cycle Time

45 - 60 seconds
Power Supply 8 Amps @ 120 VAC; 4 Amps @ 240 VAC (Automatically converts)


10" (25) W x 26" (48) L x 19" (48) H

Media Capacity Accommodates all magnetic media within 1" (2.5) x 6" (15) x 4.3" (11)


128 lbs. (54 kg)

Altitude Operates up to 25,000 feet (7,620 meters)
Warranty 1-year parts and labor

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Order from

BOW Industries, Incorporated
10349 Balls Ford Road
Manassas, Virginia 20109 U.S.A.
Tel: 703-361-7704

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Last modified: September 15, 2016