Trigno Quattro Sensor

Trigno Quattro Sensor

Advanced, 4-channel EMG + IMU sensor for adaptable muscle tracking

Sensor Design


Four of the smallest EMG sensing heads

Includes IMU to track human movement in both research labs and mobile environments.

25 mm
small EMG
12 mm
46 mm Wi-Fi and Bluetooth Capability
27 mm

7 mm
Transmission range of up to 40 meters 10 mm

Available for Research+ and Mobile systems Cable Lengths: 7", 8", 9" 10 in


System & Software

The Trigno Quattro Sensor is designed to work with all Trigno systems.

Trigno Research+ System

Our flagship system for reliable, synchronized EMG + IMU recordings in research facilities.

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Trigno Lite System

Low profile, entry-level EMG system that yields robust, research-worthy results.

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Trigno Mobile System

On-the-go tools for clinical and teaching applications.

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HMIs, Prosthetics, Exoskeletal Systems, Pediatrics, Speech Therapy

Technical Information

Sensor Channels
4x EMG, up to 6x IMU

Reference Type
Dual on-board stabilizing reference

Inter-Electrode Spacing
10 mm

Size (Body)
27 x 46 x 13 mm

Size (Head)
25 x 12 x 7 mm

Cable Length
7 in 8 in 9 in 10 in

25 g

Battery Life
2-4 hours

Operating Range
40 m in RF mode
Host Dependent/unlimited datalogger

Wireless Protocol
2.400-2.483 GHz ISM Band, Proprietary RF Protocol
BLE V4.2

EMG Bandwidths
10-850 Hz
20-450 Hz

EMG Sampling Rate (Max)
2222 sa/sec

Contact Material
99.99% silver

Protected by one or more of the following Patents 6480731, 6238338, 6440067, 9351559, 8971983, EP1070479

Accelerometer Sampling Rate (Max)
741 sa/sec

Gyroscope Sampling Rate (Max)
741 sa/sec

Orientation Sampling Rate (Max)
74 sa/sec

Sensor Resolution
16 bits

EMG Baseline Noise (typical)
750 nV

EMG Input Range
11 mV / 22 mV rti

<-80 dB

Recharge Time (typical)
2.5 hours

Inter-Sensor Latency
< 1 sampling period

On-Board EMG Filter
Butterworth bandpass (40/80 dB/dec)
RMS Envelope Calculation (100 ms window)

Real-Time IMU Orientation Filter
Quaternions or RPY (selectable)

Medical Grade Polycarbonate

Seal and Protection
UV-sealed to prevent moisture from entering the sensor & to enhance patient safety

Quote Request

Interested in the Trigno Quattro Sensor? Call us at +44 161 504 5066, e-mail us at, or complete the form.