Surface EMG Sensors

Biometrics Ltd's Surface EMG sensors are designed with cutting-edge technology, built on years of dedicated research and development. These sensors are tailored to meet the demanding needs of muscle activity analysis in research settings.

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DataLITE Wireless Surface EMG Sensor (LE230)

Wireless / Wired (Integral Electrodes)

Unlock the power of precise muscle measurement with Biometrics Ltd. Surface EMG sensors, expertly designed for your convenience in both wired and wireless configurations. With input impedance greater than 100 Mohms, our sensors require minimal or even no skin preparation - saving you valuable time in your research and studies.

The DataLITE wireless EMG sensor is small, lightweight and uses progressive frequency hopping, error detection and data recovery algorithms, allowing muscle activity readings to be smooth and robust even in a typical work environment with a range of up to 30 meters from its receiver.

Surface EMG Sensor (Wireless / Wired)

	DataLITE Wireless EMG Sensor	Wired EMG Sensor
Product Ref	LE230	SX230
Dimensions	42 x 24 x 14 mm	37 x 20 x 6 mm
Mass	17 g	5 g (excluding cable and plug)
Bandwidth	10 – 250, 470, 950, 5000Hz	20 – 460Hz
Additional Bandwidths	N/A	5Hz – 480Hz 5Hz – 1000Hz
Contact Diameter	10 mm
Contact Center Spacing	20 mm
Electrodes	Integral dry reusable
CMRR @ 60 Hz (dB)	> 96 dB (typically 110 dB)
Full Scale	User Select ±6000µV, ±6mV, ±2000µV, ±2mV, ±600µV, ±200µV, ±60µV	+/- 3 mV Peak to Peak ± 1mV, ±3mV
Gain		Standard unit x1000 (100 also available)
Input Impedance	>100 Mohms
Accuracy	+/- 1.5%	+/- 2% full scale
Noise	‹ 5µV
Supply Voltage	N/A	+3.50 to +5.5 Vdc
Battery Life	Up to 8 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	1.25m cable (custom lengths available on request)
Compatible Interfaces	DataLITE PIONEER, ADVANCE, EXPLORE	DataLOG, DataLINK, Amplifier or 3^rd party

DataLITE Wireless Surface EMG Amplifier (LE230FW)

Amplifiers (Disposable Electrodes)

In areas where adjustable inter-electrode distance is necessary, our wireless LE230FW or wired SX230FW sensors stand out with their flexible design that is compatible with any reusable or disposable SEMG electrode incorporating a 4mm snap. The maximum inter-electrode distance is 170mm and the minimum distance is dependent upon the size of the electrodes used.

Surface EMG Amplifier (Wireless / Wired)

	DataLITE Wireless EMG Amplifier	Wired EMG Amplifier
Product Ref	LE230FW	SX230FW
Dimensions	42 x 24 x 14 mm Two 4 mm snap connectors on 100 mm wires	38 x 20 Two 4 mm snap connectors on 100 mm wires
Mass	17 g (excluding cable and plug)	8g (excluding cable and plug)
Bandwidth	10 – 250, 470, 950, 5000Hz	20 – 460Hz
Additional Bandwidths	N/A	5Hz – 480Hz 5Hz – 1000Hz
Contact Diameter	Dependant on electrode size
Contact Center Spacing	Variable
Electrodes	Disposable
CMRR @ 60 Hz (dB)	> 96 dB (typically 110 dB)
Full Scale	User Select ±6000µV, ±6mV, ±2000µV, ±2mV, ±600µV, ±200µV, ±60µV	+/- 3 mV Peak to Peak ± 1mV, ±3mV
Gain		Standard unit x1000 (100 also available)
Input Impedance	>100 Mohms
Accuracy	+/- 1.5%	+/- 2% full scale
Noise	‹ 5µV
Supply Voltage	N/A	+3.50 to +5.5 Vdc
Battery Life	Up to 8 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	1.25m cable (custom lengths available on request)
Compatible Interfaces	DataLITE PIONEER, ADVANCE, EXPLORE	DataLOG, DataLINK, Amplifier or 3^rd party

Tailor Your Research with Our Adjustable Wireless Surface EMG Sensors

Our DataLITE wireless EMG sensors come with two powerful features to provide researchers with the flexibility to tailor their hardware for specific applications. These features include variable gain and an adjustable low pass filter.

The user has control over the bandwidth of the sensor from 10Hz to 250Hz through to 10Hz to 5000Hz.
Increase the sensitivity of the EMG sensor with a choice of settings giving full scale peak to peak measurements ranging from +/- 60 microvolts to +/- 6 millivolts.

Biometrics Ltd.'s EMG sensors and systems have been frequently used for a myriad of applications, underpinning crucial research and development in ergonomics, sports science, and medical fields.

Gait Symmetry Analysis: We help researchers gain insights into the symmetry of motion during various forms of locomotion, supporting studies related to orthopedics, rehabilitation, and sports science.
Biomechanics Timing Data: Our sensors aid in capturing precise timing data, enabling deeper understanding of the biomechanical aspects of human movement.
Ergonomic Design and Tool Development: Our systems are instrumental in work environment optimization and ergonomic tool design, ensuring safer and more efficient workplaces.

Education: With our sensors, educators can provide hands-on experience and real-time demonstrations to students in fields such as kinesiology, sports science, and biomedical engineering.
Sports Performance: From elite training centers to amateur sports clubs, our sensors help optimize performance, prevent injuries, and expedite recovery.
Veterinary Science: Beyond human applications, our EMG systems also contribute to veterinary science, enhancing our understanding of animal locomotion and muscle function.

EMG Systems

Technologically advanced yet cost-effective range of wireless, portable, and laboratory EMG data capture systems offering full portability and real-time display and analysis options.

View EMG Systems

EMG Consumables

The surface EMG electrodes (SEN3001) may be used with the EMG Amplifier (LE230FW / SX230FW) or R506/R606 ground strap. The EMG electrode is a small (22 x 28 mm) silver/silver chloride electrode designed for single or multiple applications to the same patient/subject.

Double sided die cut tapes (T350) for attaching a wireless or wired EMG sensor. Hypoallergenic and latex free. 350 pieces of tape per pack.

When using a surface EMG sensor with any Biometrics Ltd instrument, independent of the number of EMG sensors used at any one time, only one of the following ground reference cables is required:

The R606 plastic ground strap has a standard 4mm snap connector and comes with convenient elasticated wrist bands for ease of use. The R606 may also be used with proprietary reusable or disposable electrodes (SEN3001) having a 4mm snap.

The R506 metal ground strap is the same as the R606 and is required for the K800 Amplifier and older models of DataLOG and DataLINK interfaces.

The R306 ground strap comes with a standard 2mm spring plug for connection to proprietary disposable electrodes with a 2mm spring socket.

	R306	R606 / R506
Type	Reusable
Cable	Highly flexible grade, length 1.25 m	Highly flexible grade, length 2 m
Application	Connection to disposable electrodes using a 2mm spring plug	Connection to reusable or disposable SEMG electrodes with 4mm snap

Frequently Asked Questions

The electrical activity generated by skeletal muscles is measured using electromyography (EMG) sensors, which are specialist instruments. When muscles contract and relax, electrically charged particles (ions) exchange within the muscle fibers, producing this electrical activity. The data may be processed to provide details about muscle activity after the EMG sensors have picked up and amplified the signals. This might contain specifics pertaining to the frequency and strength of muscular contractions, as well as muscle wear and tear.

We have high input impedance EMG sensors. As a result, they can measure muscle electrical activity precisely without using conducting gels or arduous skin preparation.

A high input impedance in an EMG sensor ensures accurate and reliable readings by reducing the loss of signal strength.

Our EMG sensors have undergone thorough testing and development to meet the rigorous requirements of muscle activity analysis. They offer high-quality data, incorporate recent design principles and technological advancements, and have features like variable gain and movable low-pass filters to meet particular research requirements.

The sensor itself has reusable integral electrodes that are built-in. On the other hand, single-use disposable electrodes can be changed out after each session.

Depending on your unique needs, you can choose between wired and wireless options. While the wired option might be better suited for studies that must remain stationary, the wireless option provides greater mobility and is ideal for such studies. Both provide superior data capture.

The range of frequencies that the sensor can precisely measure depends on its bandwidth. Our sensors have a broad bandwidth range, which gives them the flexibility to record various kinds of muscle activity.

The sensor's capacity to block unwanted signals is referred to as the CMRR (Common Mode Rejection Ratio). The sensor can better distinguish between muscle signals and noise when the CMRR is higher. Gain, which determines how much the sensor amplifies the muscle signals, is the amplification factor of the sensor. The resistance provided by the sensor to the flow of electrical current is referred to as input impedance. A higher input impedance results in more accurate measurements.

Users can modify the sensor's sensitivity to fit it to particular applications thanks to variable gain. Users can adjust the low pass filter's bandwidth to narrow the sensor's bandwidth and concentrate on their target frequencies.

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

Surface EMG Citations

Here are a few of our favourite studies using Biometrics Ltd surface EMG 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

Full body mobile brain-body imaging data during unconstrained locomotion on stairs, ramps, and level ground

Brantley, J., Luu, T., Nakagome, S. et al.

Sci Data 5, 180133 (2018)

Vibration-Damping technology in tennis racquets: Effects on vibration transfer to the arm, muscle fatigue and tennis performance

I.-L. Yeh et al.

Sports Medicine and Health Science 1 (2019) 49–5858