Wireless & Wired Load Shackle

Wireless & Wired Load Shackle


  • Massload’s Made in Canada load shackles come in T24 Wireless or wired configurations
  • Load shackles are a cost effective solution for vehicle road rescue and towing, load lifting, boat lifting, and line tension measurement
  • Standard Crosby bolt type shackle G-2130
  • Accuracy 0.1% to 0.5% FS with multi-point calibration
  • Eliminate cables and communicate with a range of wireless receivers including hand-held displays or PC-based data logging
  • 2.4 Ghz wireless transmitter
  • Wireless range up to 800 m (2,600 ft) free field site
  • Powered by 2 “AA” size replaceable batteries
  • Exceptionally low power for long battery life
  • Wireless remote power ‘on’ and ‘off’
  • Wired configuration includes with mV/V, 4-20mA and 0-10V output
  • Waterproof to IP67

Product Details

Wireless & Wired Load Shackle

Support local manufacture with Massload’s rugged and reliable industrial grade Load Shackle. Available in both T24 Wireless and wired configurations with mV/V, 4-20mA, and 0-10V instrumentation.

Common applications include vehicle road rescue and towing, load lifting, boat lifting, and line tension measurement.

Massload’s load shackles are based on the industry standard Crosby bolt type shackle and come in capacities of 8.5t, 12t, 17t, 25t, 35t. The shackles are equipped with wire lock pin for fast assembly and disassembly.

Massload’s load pins are internally gauged and made from the highest quality traceable US or European Stainless Steel.

The 2.4 Ghz wireless transmitters come with an internal antenna enclosed within a rugged and virtually indestructible enclosure ensuring the antenna cannot be damaged by rough handling. The transmitter is powered by 2 AA batteries and goes into sleep mode when not in use, extending battery life to over 500 hours continuous use equivalent. The wireless signal is very robust providing an open field range up to 2000 ft at 3m height.

Our T24 Wireless Load Shackle transmits load to a variety of T24 wireless readout indicator options including the WL-T24-HS single channel handheld LCD display, the WL-T24-HA 12-channel handheld LCD display, the WL-T24-BSu base station for data capture on PC, and the WL-T24-AO1i for wirelessly interfacing to 4-20mA PLC input.

Massload’s Wireless Load Shackles are manufactured and calibrated in-house through our VCAP certified Quality Management System.


Capacities (tonnes)

8.5t, 12t, 17t, 25t, 35t (55t special order)
Custom capacity tension scales available


Tension load accurate to 0.1% FS to 0.5% FS with multi-point calibration

Safe Overload

150% full scale safe overload

Ultimate Overload

300% full scale ultimate overload

Load Pin Full Scale Output

Wireless to Hand-held Display, 1-channel up to 12-channels
Wireless to base station receiver USB to PC with software
Wireless to wireless 4-20mA output to PLC

Wired 1 mV/V nominal, 4-20mA, 0-10V, etc.

Load Pin Excitation

Wireless Load Pin: 2 AA Batteries
Wireless Hand Held Display: 2 AA Batteries

Wired Load pin mV/V: 5 V
Wired Load pin 4-20 mA: 13-28V

Load Pin Bridge Resistance

350 Ohm

Wireless Frequency

2.4 Ghz

Wireless Range

Up to 800m (2600ft) free field at 3m height

Wireless Transmitter Battery Life

500 Hours Continuous (2 months @ 8hrs/day use)
Remote transmitter power down

Operating Temp

Wired:-40°C to +80°C
Wireless: -20°C to +55°C

Compensated Temp

-10°C to +40°C

Sealing Standard

IP-67 protected from dust and high pressure jets of water


Load pin: 17-4 Stainless Steel (USA or European origin)
Bobbin: Stainless steel
Keeper Plate: Stainless Steel
Crosby shackle: Galvanized
Electronic enclosure: HDPE


Safely store your wireless load shackle and display ready for immediate use anytime. (Image shows wireless tension link)


Capture your wireless signal directly to a PC via the T24-BSu USB base station receiver and display your data on the free T24LOG100 software.

Please click on the following links to download or view additional information:

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