Designed for measuring wires & cables that are anchored/fixed at both ends (closed system) such as guy wires, support cables, tethers and more. Also commonly used on Kevlar, fiberglass and other hi-strength materials when used in a similar applications.

The 136-3E employs a unique roller configuration and measurement scheme to minimize the deflection of the wire/cable. The total wrap angle of the material over the center sensing roller is 3 degrees eliminating all measurement errors!

No other company or product in the world can make this claim!

The material threading pattern (refer to illustration below) insures easy material acquisition and good tactile feedback allowing for excellent repeatability between measurements as well as between different users.

Precision ball-bearing rollers are used to eliminate any error caused by friction. These rollers are mounted on a large mounting plate properly spaced to remove the negative incluence normally caused by the inherent rigidity of wires and cable up to 5 mm in diameter (0.200"). 

It consists of an calibrated rotary dial fitted to the rear-side of the right outer roller. The user simply rotates the dial until the numeric value on the dial is set to the actual wire diameter & then is locked in position. To change for a larger or smaller diameter, unlock and dial to new value. Simple, quick and effective!