BioNomadix 2Ch Wireless Heel-Toe Strike Transmitter+Receiver

Name: BioNomadix 2Ch Wireless Heel-Toe Strike Transmitter+Receiver
Brand: BIOPAC
SKU: 18156

The wireless, 2-channel BN-STRIKE amplifier records the moments of heel and toe strike while walking, with no cable constraints.

BioNomadix · Heel and toe strike measurement

The wireless, 2-channel BN-STRIKE amplifier records the moments of heel and toe strike while walking, with no cable constraints.

Purpose-built for gait analysis and biomechanics — it detects the phases of foot-ground contact on one or both feet of a freely moving subject.

Part of a larger system

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

BN-STRIKE 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.

BN-STRIKE also requires a separately ordered BN-STRIKE-XDCR transducer (heel/toe pressure sensors). The receiver plugs into an MP200 channel input, and the recorded signal is added to the shared, synchronized timeline alongside the system's other modules.

Get to know the module up close

Click the points on the photo to see how the BioNomadix transmitter is worn on the subject and where the cabling connects.

BioNomadix transmitter worn on the wrist, connected to electrodes on the skin — interactive diagram

Key features

Freedom of movement during gait

No cable between the subject and the acquisition system — the subject moves naturally over any distance within the receiver's range, without the constraints typical of wired sensors.

Requires a separate BN-STRIKE-XDCR transducer

BN-STRIKE is only the transmitter-receiver. Signal acquisition requires a separately ordered BN-STRIKE-XDCR transducer with two FSR pressure sensors — one under the heel, one under the toes.

Detection of foot-ground contact phases

Independent signals from the heel and toe sensors make it possible to identify heel strike and toe-off moments in the gait cycle — the basis of gait phase analysis in biomechanics and sports science.

Compact transmitter on the ankle

Unlike modules worn on the torso, the BN-STRIKE transmitter attaches near the subject's ankle, close to the measurement point, and connects by cable to the transducer on the foot.

2 channelsheel / toe

2000 Hztransmission frequency

72-90hbattery life

10 mrange (line of sight)

Full technical specification

Signal: Heel and toe strike during walking (heel/toe strike)
Number of channels: 2 independent channels — heel and toe, from one or both feet
Transmission frequency: 2000 Hz between transmitter and receiver
Wireless range: Up to 10 m in line of sight, typically under laboratory conditions
Transmission latency: Fixed component 15.6 ms + variable component ±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: Approx. 380 g, approx. 4×11×19 cm
Transmitter mounting: On the subject's ankle (not on the torso as with EKG/EMG modules), with a cabled connection to the transducer on the foot
Required transducer: BN-STRIKE-XDCR (sold separately) — two FSR (Force Sensing Resistor) pressure sensors, one under the heel, one under the toes
Compatibility: MP200 (as well as the earlier MP160/MP150) + AcqKnowledge

Where to place the transducer

Click the point on the silhouette to see where the BN-STRIKE-XDCR transducer is mounted.

Location confirmed in BIOPAC materials for this product (transmitter on the ankle, transducer with FSR sensors under the heel and toes).

General body silhouette — front view, BN-STRIKE-XDCR transducer location on the foot

How it works

BN-STRIKE-XDCR transducer on the foot

Two FSR sensors — under the heel and under the toes — connected by cable to the transmitter mounted on the ankle.

Transmitter-receiver + MP200

Wireless transmission at 2000 Hz to the data acquisition system, with a range of up to 10 m in line of sight.

Gait phase analysis in AcqKnowledge

Identification of heel strike and toe-off moments and determination of gait cycle phases on both channels.

Experimental applications

Wireless measurement of heel and toe strike supports studies where a natural gait pattern, unconstrained by cables, matters most.

Gait analysis

Determining foot-ground contact phases — heel strike and toe-off — in the gait cycle of a freely moving subject.

Biomechanics

Synchronizing foot strike moments with other biomechanical signals recorded simultaneously in the MP system.

Sports science

Evaluating stepping patterns and the dynamics of foot-ground contact during athletic activity.

Physiology

Recording foot contact events as a time marker in studies combining movement parameters with physiological signals.

Frequently asked questions

Does BN-STRIKE include a sensor?

How many feet can a single BN-STRIKE set measure at once?

Where is the BN-STRIKE transmitter mounted?

Which acquisition systems does BN-STRIKE work with?

Download materials click to expand

Interested in this product?

BioNomadix 2Ch Wireless Heel-Toe Strike Transmitter+Receiver

Part of a larger system

BN-STRIKE is an expansion module, not a standalone system

Get to know the module up close

Transmitter

Mounting strap

Cable connector

Electrodes on the skin