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WTT-BX Wire Terminal Tester - Pull Tester

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The WTT has been replaced by the new and improved WT3-201. Please click here to view the new model

Two Models Available
WTT-110B, 0-50 Kg / 0-110lbs / 0-500 N
WTT-220X, 0-100Kg /0-220lbs / 0-1000N

The WTT Series of Wire Terminal Testers accurately measures the pull-off force off crimped-on wire terminals. The pull tester is an easy to use all-in-one, single-range solution for a wide range terminal testing applications, eliminating the need to purchase any additional grips, fixtures or accessories.

Suitable for wires AWG 30 to AWG 8 (diameters from 0.010" to 0.130").

WTT-220X version includes USB Output and is supplied with data transfer cable and software allowing the user to transfer peak values to a PC for data reporting. Additional software features include user-set limit for audible alarm as limit is exceeded.

WTTM-220X Software is compatible with Windows XP and Windows 7, it is not compatible with Windows 8. It also Requires Microsoft Excel


  • Display force values in peak or real-time measuring mode
  • Test for UL 486 & Mil Spec and other standards
  • Fabricated from steel and stainless steel, machined to the highest tolerances
  • Includes Traceable Calibration Certificate

Operating Procedure

1. Press START key to turn on your WTT-110B/220X Wire Terminal Tester
2. Press UNITS key to select desired measuring units LB / N / KG
3. Press PEAK key to select peak or real-time measuring mode
4. Insert wire sample into the appropriate size wire terminal slot
5. Open lever-clamp assembly and insert tail end of wire
6. Press START key to zero display and enter “live” measuring mode
7. Pull lever to apply force to wire and perform wire terminal pull out force measurement
8. The “live” measurement mode will time out 5 seconds after pressure is released
9. Repeat from step 4 for continued testing

Calibration Verification Procedure

Calibration for all WTT-110B/220X models can easily be verified with a hook weight as described below:

1. Remove the lever by unscrewing it in a counter-clockwise direction and move the Wire Clamp assembly out from the path of the hanging sample.

2. Position the WTT-110B/220X in a vertical position at the edge of a strong bench or desk. Be sure to secure it with strong clamps so it can not topple over when the weight is attached.

3. Turn on tester and set the display to track mode.

4. Press START to activate measurement mode (it times out in 5 seconds if load is not sensed)

5. Using a heavy-duty monofilament (fishing line), wire or similar, suspend a known weight from one of the teeth on the wire terminal fixture by hooking a loop of the material over the selected tooth.

Related Products

Click image for more info
Motorized Wire Crimp Pull Tester REPLACED BY WT3-201M
- Simple and intuitive operation allows for high volume testing
- Break-detection automatically resets system after sample fails (WTTM-220X only)
Click image for more info
- Measures real-time and peak force values
- USB, RS-232, Mitutoyo (Digimatic), and analog outputs
Motorized Wire Terminal Pull Tester
Click image for more info
Motorized Wire Terminal Tester
- LCD display with UP, DOWN, STOP and emergency stop buttons and soft keys
- Integrated travel limit switches
- 3 Year Warranty
- CE Certified
Click image for more info
Carrying Case

Complete Kit

The WTT-110B is supplied as a Complete kit that includes wire pull tester, operating instructions & Traceable certificate.

The WTT-220X includes everything listed above along with USB output cable and software CD.


Measuring RangeWTT-110B: 0-50 Kg / 0-110 lbs / 0-500N
WTT-220X: 0-100 Kg / 0-220 lbs / 0-1000N
Resolution0.01 Kg / 0.1 lbs / 0.1 N
Terminal Adapter Slot width (mm)0.5, 0.8, 1.0, 1.4, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0
Accuracy±0.5% F.S. or better
Operating ModeContinuous:
Displays actual value in Kg, lbs pr N
Displays peak value in Kg, lbs pr N
Wire DiameterSAE AS7928 II: AWG 8...30
IEC 60352-2: Cross section 0.05...10mm²
Maximum: 0.236" (6mm)
Overload200% Full Scale (LCD indicator at 120%)
DisplayLCD, 4-1/2 digit, 12mm high
MemoryPeak Value
Power SupplyInternal Solar Cell, external power is not required
Temp. RangeOperating: 32 to 104° F (0 to 40° C)
Storage: -4 to 140° F (-20 to 60° C)
Weight30.8 lbs (14 Kg) (Shipping weight 37lbs)
Dimensions14.2" x 6.3" 2.6" (360 x 160 65mm)
MaterialAnodized aluminum, steel and stainless steel
Warranty1 Year


Buy Now

Item Description Price
Manual Wire Terminal Tester, Replaced by WT3-201

Manual Wire Terminal Tester, Replaced by WT3-201

Ring Terminal Adapter for WTT-110B and WTT-220X
Uncut Adapter for WTT-110B (requires customer modification)
AC Power Adapter for WTT-110B - WTT-220X (Only needed for continuous testing / heavy use)
Dual Roller Cam Grip - Please contact us for pricing and availability.
Lever with Ball for WTT-110 and WTT-110RS
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.