Electronic Goniometers

Experience the gold standard in joint motion measurement with our innovative electronic goniometers. Electronic Goniometers, are designed for optimum comfort and usability, combining a seamless blend of technology and practicality. Providing a precise solution for measuring dynamic joint movement across two planes simultaneously. Designed to be robust yet lightweight, these flexible sensors offer unobtrusive wearability under clothing and do not restrict natural joint movement.

View Digital Goniometers For Physical Therapy

Wireless / Wired

Wireless Twin-Axis Electronic Goniometers provide the freedom of unrestricted movement, a key feature when studying natural, dynamic joint movements in real-world environments. Our wireless DataLITE technology eliminates the need for cumbersome cables, providing a hassle-free, unobtrusive experience for the user. The wireless transmission is robust and can transmit data up to a range of 30 meters, ensuring you have the flexibility and freedom to move without the concern of data loss.

A wired or wired goniometer measurement process is the same and is designed to be user-friendly and precise. The goniometer is placed over a joint, with its end blocks attached at two points across the joint. For instance, in measuring wrist movements, one end of the goniometer is attached over the third metacarpal, while the other is positioned over the midline of the forearm, with the wrist in a neutral position. As the joint moves, the electronic goniometer measures the changes in the angle between the two points. Data from these measurements is transmitted in real-time to a compatible interface. This allows instant access to the captured data, facilitating immediate analysis and interpretation.

Specifications

Wireless Electronic Goniometers Wired Electronic Goniometers
Number of Axis 2
Digital inputs 2 0
Resolution + 0.1º in a range of 180º
Bandwidth From DC to 1 KHz (+0dB/-3dB)
Full Scale ±180º
Accuracy ± 2º measured over a range of ± 90º
Repeatability 1º measured over a range of 90º
Transducer Type Strain gauge
Life1 600,000 cycles
Operating temperature range +10ºC to +40ºC
Temperature zero drift 0.15 degrees angle / ºC
Battery Life Up to 12 hours N/A
Battery Type Rechargeable Li-lon Polymer N/A
Wireless Transmission Data Loss Tolerant for 100 mS N/A
Range from Interface Wireless range up to 30m Cable lengths available: 500mm, 1000mm, 1500mm
(custom lengths available on request)
Available Sizes Click to view

Wireless Twin-Axis Electronic Goniometers

In general, there are no fixed rules governing which size of sensor is most suitable for a particular joint; this depends on the size of the subject. The sensor must be capable of reaching across the joint so that the two end blocks can be mounted where least movement occurs between the skin and underlying skeletal structure. In certain circumstances more than one size of sensor will be appropriate. The following table is given for guidance only and refers to an adult population. Size used will vary within paediatrics.

Wireless Twin-Axis Goniometer Diagram
  Joint Output No. of Channels A Max A Min B C D E F Weight (g) Minimum permissible bend rad. (mm)
W65 Wrist (Pediatric) Flexion/extension, radial/ulnar deviation 2 65 30 55 18 56 22 12 24 18
W75 Wrist (Adult) Flexion/extension, radial/ulnar deviation 2 75 35 60 18 56 22 12 25 18
W110 Neck, Elbow or Ankle Flexion/extension, lateral flexion,
flexion/extension, or dorsiflexion/plantarflexion
and inversion/eversion		 2 110 70 60 18 56 22 12 25 18
W150 Knee or Hip Flexion/extension and valgus/varus, or flexion/extension and abduction/adduction 2 150 100 70 18 56 22 12 27 18
W150/B Back Flexion/extension, lateral flexion 2 150 50 120 18 56 22 12 29 18

(measurements in mm)

 Click to view

Wired Twin-Axis Electronic Goniometers

In general, there are no fixed rules governing which size of sensor is most suitable for a particular joint; this depends on the size of the subject. The sensor must be capable of reaching across the joint so that the two end blocks can be mounted where least movement occurs between the skin and underlying skeletal structure. In certain circumstances more than one size of sensor will be appropriate. The following table is given for guidance only and refers to an adult population. Size used will vary within pediatrics.

Wired Twin-Axis Goniometer Diagram
  Joint Output No. of Channels A Max A Min B C D E Weight (g) Minimum permissible bend rad. (mm)
SG65 Wrist (Pediatric) Flexion/extension, radial/ulnar deviation 2 65 30 55 18 54 20 22 18
SG75 Wrist (Adult) Flexion/extension, radial/ulnar deviation 2 75 35 60 18 54 20 23 18
SG110 Neck,
elbow or ankle		 Flexion/extension, lateral flexion,
Flexion/extension, or dorsiflexion/plantarflexion
and inversion/eversion		 2 110 70 60 18 54 20 23 18
SG150 Knee or hip Flexion/extension and valgus/varus, or flexion/extension and abduction/adduction 2 150 100 70 18 54 20 25 18
SG150/B Back Flexion/extension, lateral flexion 2 150 50 120 18 54 20 27 18

(measurements in mm)
Compatible Interfaces DataLITE PIONEER, ADVANCE, EXPLORE DataLOG, DataLINK, Amplifier or 3rd party

Goniometric data encompasses a wide array of measurements: Angular displacements, velocities, and accelerations; minimum, maximum, and average values; repetitions; event counts above or below a set threshold; percentage of time within or outside set limits; time to reach minimum or maximum values, among others.

1Life test results have been collected by cycling the sensors through movements that would happen during everyday use. For example, placing a sensor on an adult elbow and moving from the neutral position to maximum flexion and back to the neutral position, the unit will function for typically 600,000 cycles.

Wired Twin-Axis Ankle Goniometer (SG110/A)

Twin-Axis Ankle Electronic Goniometer

Designed specifically for measurement of ankle motion in two planes. The ankle goniometer (SG110A) is attached to the lateral aspect of the ankle and simultaneously measures ankle dorsiflexion/plantarflexion and inversion/eversion. The standard W/SG110 goniometer is also available for customers desiring posterior placement on the ankle.

Compatible Interfaces: DataLOG, DataLINK, Amplifier or 3rd party

Wired Twin-Axis Ankle Electronic Goniometer

Low Profile Ankle Electronic Goniometer Dimensions
  Joint Output No. of Channels A Max A Min B C D E F G Weight (g)
SG110/A Ankle Dorsiflexion/plantarflexion, inversion/eversion 2 110 70 60 18 19 51 5.70 8.70 20

(measurements in mm)

Single-Axis Finger Electronic Goniometer

Biometrics' Single-Axis Electronic Goniometer measures angles in one plane only. This smallest goniometer is designed to measure flexion/extension of finger joints and is available as a wireless (F35W) or wired (F35) sensor.

Compatible Interfaces: DataLITE, DataLOG, DataLINK, Amplifier or 3rd party

Wireless Single-Axis Electronic Goniometer

Wireless Single-Axis Goniometer
  Joint Output No. of Channels A B C D Min D Max E F G H I
F35W Finger (DIP, PIP, MCP) Flexion/extension 1 9 6 18 30 35 15 300 (mm) 56 12 22

(measurements in mm)

Wired Single-Axis Electronic Goniometer

Wired Single-Axis Goniometer
  Joint Output No. of Channels A B C D Min D Max E F G H I
F35 Finger (DIP, PIP, MCP) Flexion/extension 1 9 6 18 30 35 15 340 (mm) 40 10 10

(measurements in mm)

Electronic Goniometer sensors and systems enjoy widespread usage due to their versatility in capturing precise measurements, making them indispensable in a variety of applications. These include:

  • Biomechanics: For detailed understanding and analysis of human motion.
  • Ergonomics: Enhancing workspaces and tools for optimal human use.
  • Gait Analysis: Evaluating and improving locomotion patterns.
  • Sports Science: Optimizing athletic performance and injury prevention.
  • Clinical & Medical Settings: Monitoring and improving patient joint movement and rehabilitation.
  • & Many More!
DataLITE Wireless Electronic Goniometer System

Electronic Goniometer Systems

Technologically advanced, yet cost-effective range of goniometer data capture systems offering full portability and real-time display and analysis options

View Systems

Frequently Asked Questions

An electronic goniometer is a device used to measure joint angles and movements. It provides a precise, non-invasive method to quantify joint position and range of motion in real-time.

The goniometer is placed over a joint, with its end blocks fixed at two points across the joint. As the joint moves, the goniometer measures the change in the angle between the two points.

Both versions function identically, the main difference is that the wired goniometer is connected directly to the data collection device via a cable, while the wireless goniometer transmits data remotely.

Our electronic goniometers have an accuracy of ±2º measured over a range of ±90º and repeatability of 1º measured over a range of 90º.

The goniometer sensor is compatible with DataLITE PIONEER, ADVANCE, EXPLORE interfaces, as well as DataLOG, DataLINK, Amplifier, or 3rd party interfaces.

Yes, our goniometers are designed to be lightweight and flexible, so they can be comfortably worn under clothing without hindering movement.

The battery life of the wireless goniometer is up to 12 hours, and it uses a rechargeable Li-Ion Polymer battery.

The wireless goniometer has a transmission range of up to 30 meters.

Yes, the goniometers can be used on any joint, and the size of the sensor should be chosen based on the size of the joint and the subject.

We provide thorough customer service and a two-year warranty for our products.

Electronic Goniometer Citations

Here are a few of our favourite studies using Biometrics Ltd Electronic Goniometer sensors

The Effect of Shin-Torso Alignment on Muscle Activity and Joint Angles of the Lower Extremity in Collegiate Ice Hockey Players

Pring, Noah A. et al.

International Journal of Exercise Science: Vol. 14: Iss. 1, Pages 552 - 562

Effects of Functional Electrical Stimulation Cycling of Different Duration on Viscoelastic and Electromyographic Properties of the Knee in Patients with Spinal Cord Injury.

Casabona A, Valle MS, Dominante C, Laudani L, Onesta MP, Cioni M.

Brain Sci. 2020 Dec 23;11(1):7.

Effect of structural turnout suit fit on female versus male firefighter range of motion.

McQuerry M.

Appl Ergon. 2020

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