Electrocardiogram (ECG)

Wearable Sensing’s DSI ECG are dry electrode sensors that have a wired connection directly to the DSI-24, DSI-7, or DSI Flex system. The sensors can be placed on the chest, and used to detect the electrical activity of the heart. 

*Actual ECG data collected from DSI-24


ECG, or Electrocardiogram, is a technique for recording and interpreting the electrical activity of the heart. Electrodes are typically placed on the chest, near the heart, which are used to detect the small electrical changes that are a consequence of cardiac muscle depolarization followed by repolarization during each cardiac cycle. ECG can be used to measure the rate and regularity of heartbeats, the size and position of the chambers, presence of any damage to the heart, and other types of conditions that affect the heart. 

DSI Electrode Types

Wet Electrodes

DSI ECG can be equipped with snap-on sticky electrodes that can be easily placed anywhere on the body

Dry Electrodes

DSI ECG can be equipped with snap-on dry electrodes that can be secured on the body with a provided velcro harness


Wet Electrodes

Dry Electrodes + Harness


Compatible DSI Systems

DSI Flex

The DSI Flex has 7 customizable sensor locations, which can be configured in any variation of ExG, GSR, RESP, and TEMP


The DSI-24 has 3 auxiliary inputs on the headset, allowing seamless integration of wired ExG, GSR, RESP, and TEMP


The DSI-7 has 7 EEG sensors, and 2 earclip references. These earclips can be modified to record ExG

Sampling Rate

300 Hz (600Hz upgrade available)


0.003 – 150 Hz

A/D resolution

0.317 μV referred to input

Input Impedance (1Hz)

47 GΩ


> 120 dB

Amplifier / Digitizer

16 bits / 24 channels

Connection Type

Wired to DSI system