VOLT (Visual Optical Length Tester)
Manufactured Exclusively by OWL!
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Part Number
Visual Optical Length Tester (VOLT)
VOLT Visual Optical Length Tester
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VOLT Visual Optical Length Tester
Almost all fiber optic experts own a VFL similar to VOLT but they don't get the extra benefit length testing features of

VOLT functions as any good quality Visual Fault Locator (VFL). However, with the same price range as other VFL's,
VOLT has the added benefit of doubling as a LOOPING length tester!  Many cabling warranties and bids are
requiring meter based length tests to prove length of links.

VOLT uses 2 fibers and patch cables to establish a length test accurate to +/- 7 feet !  VOLT's VFL functions up to
Kilometers (3.1 Miles)
. Loop length testing functions up to 1.5 Kilometers.  

As far as VFL function, VOLT holds its own against the best in the industry. As with any quality VFL VOLT is a
precision coupled laser diode! VOLT is not made as a cheap laser light pen is designed! Rather, a multi-million
dollar semiconductor machine is used in the manufacture of a special precision coupled micro sized ball lens.
This precision coupling allows VOLT to couple maximum red laser light into the tiny connector orifice of fiber optic
links up to 5 Kilometers (3.1 Miles) of distance!
"Fiber installations are increasingly required to have fiber length
measurements to comply with bid requirements. Rather than purchase
expensive certification test sets, the VOLT can be added to an installer’s
existing fiber test kit for a fraction of the cost.  Makes sense to me.  How
about you?"
Functions as a visual fault locator up to 5
Kilometers and length tests multimode or
singlemode fiber up to 1.5 Kilometers !
Most quality VFL's will go this distance. However at extreme distances like this the "fault finding" capability is reduced to
fiber identification only. At shorter "LAN" distances high energy red laser light can be used to see breaks in fiber behind
patch panels (hence the name visual fault finder). But be assured VOLT holds its own against any other brand name VFL!

Optical length testers save time by eliminating the need to measure fiber by the cable jacket. Fiber links may also go through
multiple cross-connects or have splices in the middle, thereby making jacket markings invalid. Optical measurement of fiber
produces accurate results without the need for jacket markings.

Optical measurement also saves time by eliminating the need to estimate the length of the fiber run with a measuring wheel.
This method is especially troublesome and inaccurate in networks that traverse walls, are in a star topology, or contain
riser cables.

The VOLT uses a "round-robin" method of measuring fiber length. This is accomplished by looping back two fibers at one
end of the fiber run. The round trip time that the light takes to travel through the fibers is converted to length in kilometers,
then divided by two to show the length of the fiber cable. There is no need to measure the length of all the fibers; the length
measurement can be applied to all fibers in the cable.
Key Benefits

  • Measures the length of both single-
    mode and multimode fiber with
    accuracy of ± 2.5 meters
  • High-intensity visible red laser allows
    for visible fault location of breaks and
    micro bends
  • Pulsed mode provides easy fiber
  • Easy-to-read bright red 7-segment LED
  • 15 hours continuous use on one 9v
  • Low battery indicator
  • Handheld
  • Lightweight
Products ship with owner's manuals on CD.  Adobe Acrobat
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How To Place Orders:
4 Ways To Place Orders at Fiber Optic Tools
1.) Via PayPal - Authorized PayPal Account
2.) Via Email - [email protected]
3.) Via Phone - (512) 785-9024
4.) Via Credit Card

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Ph: 512-785-9024
How To Place Orders:
4 Ways To Place Orders at Fiber Optic Tools
1.) Via PayPal - Authorized PayPal Account
2.) Via Email - [email protected]
3.) Via Phone - (512) 785-9024
4.) Via Credit Card

Air Freight or Special Handling? NO WORRIES!
GIVE US A CALL and we will handle it for you.
Return Policy:  No returns will be accepted after 30 days from date of shipment.  There MUST be an RMA #
with every shipment that is returned.  If the RMA # is not clearly visable on package and/or packing list, the
shipment will be refused.  Further, there will be a 15% re-stocking charge on all returned items.  If there are
Warranty Issues, those will be dealt with on an individual basis.