TRD-800 Tape Recorder & RF Detector



The TRD-800 is designed specifically to protect your information by "silently vibrating" in the presence of a tape recorder* or RF bugging device. Designed to be worn on the body, the silent mode vibrator is totally covert in operation and alerts only you in the presence of a recorder or bug. Comes with dual mode wristband antenna and built-in rechargeable battery.

There are several "copies" of the TRD-800 on the market because of it's success as a product. While some of the copies may be cheaper, they do not provide the frequency performance and sensitivity of the true TRD-800. We guarentee it!


  • Detects RF Eavesdropping Devices & Tape Recorders. Contains separate RF and magnetic receivers with independent indicators.
  • "Super Sensitive" Pocket-size design with Dual Mode Wristband Antenna.
  • Silent Vibrator alert, with on/off selectability.
  • Manual Reset for Ident LEDs with Automatic Level Control
  • Rechargeable Battery Pack (self-contained) with Low Battery LED Indicator.
  • Rugged, Aircraft Aluminum Construction with padded carrying case.

The TRD Specifications:

  • Frequency Response: 10kHz - 1GHz
  • VLF Magnetic Response: 38-45 kHz 2.22 x 5.72 x 8.89 cm
  • Typical RF detection range 3 ft (depending on the transmitter)
  • Typical Tape Recorder Detection Range: 1-3 ft (depends on make of Tape recorder)
  • Size: 7/8 x 2 1/4 x 3 1/2 in,
  • Weight: 6 oz, 170 g
  • Internal battery: 7.2V 100mAh, 8-10hrs use per charge
  • External charger: 115 or 230 VAC available

* Tape recorders must contain magnetic bias oscillators to be detectable.


TRD-800 Tape Recorder & RF Detector: $795.00

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Order by phone @ 512-719-3595
Order by fax @ 512-719-3594
Order by mail @
Thomas Investigative Publications, Inc.
P O Box 82148, Austin, Texas 78708
Insured UPS shipping $15.00

Copyright: 2005. All rights reserved.
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