Product no longer stocked – limited availability
Contact for pricing and lead time--a minimum order quantity may apply



The Torque-Link-LXRS® is a specialized analog sensor node designed to fit over rotating shafts for wireless strain and torque measurements.

Product Highlights

  • One or two differential analog input channels designed for full-bridge strain gauge integration
  • Ideal for static and dynamic torque measurements with full temperature compensation and bending cancellation
  • Rugged ABS housing designed for remote, long-term installation on cylindrical shafts
  • Wireless data transmission allows installation on rotating components without a slip ring
  • Standard and custom diameters available
  • User-programmable sample rates up to 4096 Hz
Datasheet Manual Software

Wireless Simplicity, Hardwired Reliability

High Performance

  • Lossless data throughput and sensor-to-sensor sampling synchronization of ±32 μS in LXRS-enabled modes

Ease of Use

  • Wireless framework reduces installation complexity
  • Installs over existing strain elements and shafts with no mechanical modifications
  • Configurable housing geometry will accommodate any shaft size
  • Low power consumption allows extended use
  • Remotely configure sensors, acquire, and view sensor data with Node Commander®

Sensor input channels

Differential analog, 1 channel (standard),

2 channels (optional)

Integrated sensors

Internal temperature, 1 channel

Data storage capacity

2 M bytes (up to data points)

Analog Input Channels

Measurement range

Differential: full-bridge, 350 Ω


± 0.1% full scale typical

Anti-aliasing filter bandwidth

Single-pole Butterworth

-3 dB cutoff @ 500 Hz

Bridge excitation voltage

+ 3 V dc (pulsed @ sample rates 16 Hz to conserve power)

Measurement gain and offset

User-selectable in software on differential channels, gain values from 20 to 2560

Integrated Temperature Channel

Measurement range

-40 °C to 85 °C, ± 2 °C (at 25 °C) typical


12 bit


Sampling modes

Synchronized, low duty cycle, datalogging

Sampling rates

Continuous sampling: 1 sample/hour to 512 Hz

Periodic burst sampling: 32 Hz to 4096 Hz

Datalogging: 32 Hz to 4096 Hz

Sample rate stability

±3 ppm

Network capacity

Up to 2000 nodes per RF channel (and per gateway) depending on the number of active channels and sampling settings. Refer to the system bandwidth calculator:

Synchronization between nodes

± 32 μsec

Operating Parameters

Wireless communication range

100 m (typical)

Radio frequency (RF)

transceiver carrier

2.405 to 2.470 GHz direct sequence spread spectrum over 14 channels, license free worldwide, radiated power programmable from 0 dBm (1 mW) to 16 dBm (39 mW); low power option available for use outside the U.S.- limited to 10dBm (10mW)

RF communication protocol

IEEE 802.15.4

Power source

Replaceable, non-rechargable battery pack (3.0 V dc, 1.2 Ah Li/MnO2 batteries in series configuration)

Power consumption

1 to 25 mA (configuration dependent)

Operating temperature

-20 ˚C to + 80 ˚C

Angular acceleration limit

500 g standard (high g option available)

Maximum RPM

2500 to 4200 RPM (diameter dependent, high RPM option available)

Physical Specifications


Height 88.9 mm (3.5 inches), ID varies for use on 50.8 to 152.4 mm (2 to 6 inch) diameter shafts (custom sizes available)


200 to 525 grams (0.44 to 1.16 lb), depending on size

Environmental rating

IP66, tested to DO-160 standards for temperature variation, humidity, and vibration

Enclosure material

ABS thermoplastic


Compatible gateways

All WSDA® base stations and gateways

Compatible sensors

Bridge type analog sensors


Strain gauge and battery interface connectors

Shunt calibration

Internal shunt calibration resistor 499 KΩ


SensorCloud™, Node Commander®, Windows 7 (or newer)

Software development

Open-source MicroStrain Communications Library (MSCL) with sample code available in C++,Python,and.NET formats (OS and computing platform independent):

Regulatory compliance

FCC (U.S.), IC (Canada), ROHS


What is Multipath?

Multipath is the phenomenon whereby a radio signal arrives at a receiver’s antenna by more than one path. This occurs by the reflection, diffraction, or scattering of radio waves from atmospheric ducting, reflection from water bodies or terrestrial objects (like mountains), etc.

Does Multipath impact signal strength?

Yes, multipath propagation of radio signals causes fading of the transmitted signal, which can be indicated by fluctuations in signal strength when received by the signal receiver.

How do I mitigate Multipath?

Pe-position base station or node to mitigate possible multipath interference.
Ensure a clear path to the antenna for the strongest signal, enhancing the strength of the strongest signal AND reducing the strength of the weaker signals.

Learn More: Mutipath Propagation

Microsoft Excel displays the timestamp contained in the wireless node data files incorrectly.  If you were to open the CSV file with Microsoft Notepad, you will see that the timestamp is shown properly.  In order to get Excel to show the human readable time, follow the below procedure:

  • Highlight all of column A (column with the timestamp)
  • Right click on highlighted region and select Format cells...
  • Select the Number Tab in the window that open and choose Custom from the Category box
  • Scroll to the bottom of the list in the Type box, find this entry: m/d/yyyy h:mm and click it
  • Add to the entry an :ss.000 so it now looks like this: m/d/yyyy h:mm:ss.000
  • Click OK

The timestamp will now be correct.

Not what you're looking for? Visit our FAQ page or contact our Sales team.