Fisher TW-6 2-box Metal Detector

Fisher TW-6 2-box Metal Detector 2 5 5 1
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The Fisher TW-6 is an industry leading 2-box metal locator. Locate deeply buried pipes, cables, manhole covers, vaults, valve boxes and other metallic objects. This latest release of this model includes an easy to read LCD Display screen with backlight and digital readout. The battery status is always visible on the display.

Find Underground Metallic Objects with Ease

The Model TW-6 “Two-Box” metal detector finds underground pipes, cables, manhole covers, vaults, valve boxes and other metallic objects. The TW-6 is used primarily by water departments, telephone companies, power companies, gas companies and petroleum pipeline companies when making repairs and rearranging lines.

Easy Operation, Accurate Target Location

The TW-6 shows where to dig, as well as where NOT to dig. To increase the instrument’s sensitivity, Fisher engineers removed all unnecessary metallic parts on the TW-6, replacing them with durable ABS molded plastic. Coil windings are designed with completely upgraded electronics and nonmetallic parts have boosted the tracing distance of the TW-6. 

Electric power companies and others use this equipment to locate cable and wire, pipes, buried lines and other utilities. This two box metal detector is one of the Fishers most popular products. To increase the instruments sensitivity, Fisher engineers removed all unnecessary metallic parts on the TW-6, replacing them with durable ABS molded plastic. The device has a stereo jack for use with external headphones.

Classic Fisher Design

In the Fisher tradition, the TW-6 is affordable, tough, and simple to use while providing maximum performance. A two year limited warranty comes standard with the unit. A Ground Rod Harness Assembly provides an efficient ground for conductive tracing. The Fisher TW-6 Pipe & Cable Locator has noise cancelling circuitry that eliminates power line interference. As industry leaders in pipe and cable locating equipment, Fisher has perfected the technology originally introduced in earlier models. 

Detailed Specifications:

  • The Fisher TW-6 metal detector is the industry leading 2-box locator
  • The Fisher TW-6 is excellent for blind searches
  • Crystal controlled frequency in both transmitter and receiver increases tracing distance
  • Unlike other units that use a separate transmitter and receiver, the Fisher TW-6 when mounted on the handle, can conduct "blind" searches of an area to locate an underground pipe or cable when the starting point is unknown
  • VCO (Voltage Controlled Oscillator) gives a wider range of audio single to indicate the presence of metal. Even after the meter pegs, the audio signal goes much higher in pitch and volume
  • Noise canceling circuitry eliminates power line interference
  • The Fisher TW-6 is powered by 16 standard AA (penlight) batteries: eight in the transmitter and eight in the receiver
  • The Fisher TW-6 metal detector weighs only 5.5 pounds

TW-6 Receiver Specifications

  • Operating Frequency: 81.92 kHz + .005%
  • Batteries: 8 each AA (NEDA 15)
  • Weight: 3 lbs. (1.36 kg)
  • Sensitivity: Normal: 400 uV typical High: 8 uV typical
  • Signal-to-noise Ratio: 110 dB
  • Headset Impedance: 600 ohms (mono) 8 ohms (stereo)
  • Dimensions: 11 1/2" x 9" x 3" (29 x 23 x 7.6 cm)
  • Operating Temperature: -10°F to +120°, (-23°C to +48°C) depending on batteries used
  • Total Weight: 5.5 lbs. (2.5 kg) - (without handle accessory, ground plate assembly & op manual)
  • Total Shipping Weight: 6.75 lbs. (3 kg) - (including only ground plate assembly and operating manual)

TW-6 Transmitter Specifications

  • Operating Frequency: 81.92 kHz + .005%
  • Batteries: 8 each AA (NEDA 15)
  • Weight: 2.5 lbs. (1.1 kg)
  • Dimensions: 11 1/2" x 9" x 3" (29 x 23 x 7.6 cm)
  • Operating Temperature: -10°F to +120°, (-23°C to +48°C)

Standard Factory Items Included

  • 5 Year Warranty
  • Comprehensive User's Manual
Product Specifications
Leasable with Katapult Yes
Approximate Weight
The approximate weight of the detector when fully assembled.
5.5 Pounds
Audio Identification
Circuitry producing different audio tones for each target’s conductivity range, i.e., low tone for nickel, high tone for coins.
Battery Requirements
The type and amount of batteries used to operate the detector.
16 - AA
Battery Indicator
An indicator to show the user how much battery life is left.
The company that produces the detector.
Fisher Labs Industrial
Built-In Flashlight
An on-board flashlight.
Search Coil Size
The size and dimensions of the search coil
Two Large Coils
The country where the detector is made
United States
Ground Balance
A feature available on many detectors that allows the device to filter out signals from minerals in the ground, while accepting signals from actual targets.
Manual Ground Balance
Headphone Jack Size
The size of the headphone jack
1/4 Inch
Holster Included
Holsters are typically included with Pin Pointers
Includes Bonus Items
Bonus items are shown pictured with the device on the product page are included with this product
The overall length of the model when fully assembled
Operating Mode
Operating modes would include, but are not limited to, discriminate mode and all-metal mode
All Metal
Operating Frequency
The frequency at which the detector operates.
8.2 kHz
Circuitry Type
The type of circuitry the detector uses. Typically, you will see VLF (Very Low Frequency) detectors, and PI (Pulse Induction) detectors.
Pinpoint Mode No
Sensitivity Adjustment
This adjustment affects how sensitive the detector is to targets, and ultimately how deep they will be able to be detected.
Vibrating Alert
A vibration feature that allows users to feel targets being detected.
Visual Identification
A visual target ID that allows the user to determine the composition of the target being detected before digging. Typically, a visual target ID is a numerical display based off the conductivity of the target being detected.
The amount of time the manufacturer will cover any broken parts or malfunctioning electronics.
2 Years
Water Resistance
The degree to which the detector is resistant to water. Weatherproof implies that the detector is resistant to splashing and rain. Waterproof implies the detector is fully submerisble. (All models will offer waterproof search coils.)

Ask a question about this product

How deep can I located a steel rod 7/8. X8inches long
Question by: Jon Custer on Mar 28, 2020, 5:45 PM Link
The TW-6 is designed to locate larger targets, like oil/septic tanks, not smaller targets like what you had described. I think for your application, the Fisher FML-3 would be a better consideration. Depth with the FML-3 is down to about 4 feet or so.
Answer by: on Mar 31, 2020, 10:26 AM
Read real stories of what people found with Fisher TW-6 2-box Metal Detector

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Since 1983 we have offered a return policy that is quite simple. We want you to be 100% satisfied with your purchase.  Here are the details in black and white:

Returns & Exchanges:
Within 14 days of receipt of your on line order, you may return or exchange any hobby item in original condition. All products must be unused, unassembled in the original packaging and with the manufacturer's original blank warranty form and instruction manual. Simply call us for a return authorization code and our special returns address before shipping any product back for a refund, store credit or exchange. Refunds are issued to the same credit card, debit card, gift certificate, or other form of payment used in the original transaction.

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Specialty Products:
Security, Industrial, Makro Deep Seeking Detectors, JW Fishers Underwater Search & Recovery, DRS Detectors and special order items are not returnable.