BioNomadix 2Ch Wireless Goniometry Transmitter+Receiver

Name: BioNomadix 2Ch Wireless Goniometry Transmitter+Receiver
Brand: BIOPAC
SKU: 18157

The wireless, two-channel BN-GONIO goniometry amplifier measures joint angles along two rotational axes at once, with no cable constraints.

BioNomadix · Wireless goniometry

The wireless, two-channel BN-GONIO goniometry amplifier measures joint angles along two rotational axes at once, with no cable constraints.

Two independent angle channels — e.g. wrist flexion/extension and radial/ulnar deviation — in a single module, compatible with the whole BioNomadix family of goniometer, torsiometer, and finger goniometer sensors.

Part of a larger system

System diagram: BioNomadix transmitter on the subject, receiver in the MP200 unit, analysis in AcqKnowledge

The BN-GONIO is an expansion module, not a standalone system

The BioNomadix transmitter and receiver alone do not record or store data. Measurement requires an MP200 data acquisition unit (or the earlier MP160/MP150) together with AcqKnowledge software.

In addition, the BN-GONIO requires a separately ordered goniometer, torsiometer, or finger goniometer sensor, connected via the BN-ADAPT-GON adapter — details in the section below. The receiver (GONIO-R) connects to an MP200 channel input, and the recorded signal is placed on a shared, synchronized timeline together with the system's other modules.

Required accessories

The BN-GONIO is just the amplifier/transmitter-receiver (GONIO-R) with two independent outputs — each requires its own adapter and sensor. Both outputs can be used for one twin-axis sensor, or for two independent single-axis sensors in any combination.

BN-ADAPT-GON

Gonio/Torsio Adapter

Connects a goniometer, torsiometer, or finger goniometer sensor to an output of the BN-GONIO wireless transmitter. Included with BioNomadix sensors; for BIOPAC sensors purchased separately or third-party sensors, it can be ordered on its own.

One adapter per transmitter output (channel)
Included with BioNomadix sensors — sold separately only for sensors purchased outside a set
Also compatible with matching third-party sensors

BN-GON-110/150-XDCR

Twin-axis goniometer

A wireless, dual-plane angle sensor — measures two joint angles at once, e.g. wrist flexion/extension and radial/ulnar deviation. Available in two cuff sizes.

Cuff size: 110 mm (BN-GON-110-XDCR) or 150 mm (BN-GON-150-XDCR)
Uses both transmitter outputs at once (two axes of motion)
Measures angular limb movement

BN-TOR-110/150-XDCR

Single-axis torsiometer

A transducer for measuring axial rotation — e.g. forearm pronation/supination. Single-axis, uses one transmitter output.

Cuff size: 110 mm or 150 mm
Measures rotation about an axis, not a flexion angle
Two torsiometers can be connected at once, one per output

BN-GON-F-XDCR

Finger goniometer

A single-axis sensor for measuring flexion/extension of a single finger or toe joint.

Single-axis angle measurement
Designed for finger/toe joints
Can be paired with a second sensor on the transmitter's free output

Get to know the module up close

Click the points on the photo to see the GONIO-R receiver and BioNomadix transmitter up close.

BioNomadix BN-GONIO — GONIO-R receiver and transmitter with GON A / GON B outputs

Key features

Flexible output configuration

The two independent outputs can be used for one twin-axis sensor (e.g. a goniometer), or for two independent single-axis sensors, in any combination.

Requires an external sensor

The BN-GONIO is just the amplifier/transmitter-receiver. A goniometer, torsiometer, or finger goniometer connects separately, via the BN-ADAPT-GON adapter.

Third-party device compatibility

The BN-ADAPT-GON adapter enables the connection of compatible angle/torsion sensors from outside the BioNomadix family.

Wireless operation

No cable between the joint being studied and the acquisition system — full freedom of movement while measuring range of motion.

2angle measurement channels

2000 Hztransmission rate

72-90hbattery life

110/150 mmsensor cuff size

Full technical specification

Signal: Angle across two planes of motion (e.g. flexion/extension + radial/ulnar deviation)
Number of channels: 2 independent angle channels
Required sensor: Twin-axis goniometer BN-GON-110/150-XDCR, single-axis torsiometer BN-TOR-110/150-XDCR, finger goniometer BN-GON-F-XDCR (single-axis), or a compatible third-party sensor — connected via the BN-ADAPT-GON adapter
Output configuration: Two independent outputs (GON A, GON B) — one twin-axis sensor using both outputs, or two independent single-axis sensors in any combination
Transmission rate: 2000 Hz between transmitter and receiver (shared BioNomadix platform)
Wireless range: Up to 10 m (line-of-sight), typically in laboratory conditions
Transmission latency: Fixed component 15.6 ms + variable ±0.5 ms rms
Battery life: 72–90h of continuous operation, full charge approx. 1h
Transmitter weight / dimensions: Approx. 54 g, approx. 6×4×2 cm
Receiver dimensions (GONIO-R): Approx. 380 g, approx. 4×11×19 cm
Compatibility: MP200 (and the earlier MP160/MP150) + AcqKnowledge

Where to place the sensor

Click the point on the silhouette to see an example placement of the goniometer — measuring wrist angle.

Indicative placement — a typical example of a goniometry application (wrist joint). The exact mounting location depends on the joint being studied and the study protocol.

General body silhouette — front view, example placement of the goniometer on the wrist

How it works

Sensor on the joint

A goniometer, torsiometer, or finger goniometer mounted at the joint being studied, connected via the BN-ADAPT-GON adapter to the transmitter.

Transmitter-receiver + MP200

Wireless transmission at 2000 Hz to the data acquisition system.

Angle analysis in AcqKnowledge

Recording of the angle profile across two planes of motion, synchronized with the system's other signals.

Experimental applications

Wireless angle measurement supports joint range-of-motion research without the constraints typical of wired sensors.

Biomechanics

Analysis of joint range of motion (ROM) during movement, with the subject moving freely.

Rehabilitation

Tracking progress in restoring joint mobility over time, e.g. after an injury or orthopedic procedure.

Ergonomics

Assessing working limb angles during job tasks and designing workstations.

Sports science

Analyzing movement technique and joint range of motion during athletic activity.

Frequently asked questions

Does the BN-GONIO include an angle sensor?

What's the difference between a goniometer and a torsiometer in this system?

Do both outputs have to be used for one sensor?

Can a third-party sensor be connected?

Which acquisition systems does the BN-GONIO work with?

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BioNomadix 2Ch Wireless Goniometry Transmitter+Receiver

Part of a larger system

The BN-GONIO is an expansion module, not a standalone system