In this article, learn what’s the difference between analog and digital sensor and why it matters for when you select your biosignalsplux kit.
Overview
Analog sensors require one individual connection for each output signal provided. In other words, 1 port of the biosignalsplux hub is occupied by 1 sensor connection and only 1 sensor signals is acquired via this connection.
Examples of analog sensors are Electrocardiography (ECG), Electromyography (EMG), and Respiration sensors.

Digital sensors require only one connection to provide multiple output signals. In other words, 1 port of the biosignalsplux hub is occupied by 1 sensor connection but multiple signals be acquired via this connection.
Examples of digital sensors are our FNIRS and SpO2 sensors.

Why is this important?
Digital sensors have been introduced recently into the biosignalsplux product portfolio and are not compatible with all biosignalsplux hub. Check out the following article to see what sensors are compatible with your hub:
Can I use any biosignalsplux sensor with my biosignalsplux hub?
Full List of Analog and Digital biosignalsplux Sensors
Analog Sensors
- Electromyography (EMG)
- Electrocardiography (ECG)
- Electrodermal Activity (EDA)
- Electroencephalography (EEG)
- Electrooculography (EOG)
- Electrogastrography (EGG)
- Accelerometer (ACC)
- Temperature (TEMP)
- Piezo-Electric Respiration (PZT)
- Force (FSR)
- Light (LUX)
- Inductive Respiration (RIP)
- Vaginal EMG (V-EMG)
- Blood Volume Pulse (BVP)
- Load Cell
- Force Platform
- Goniometer
- SpO2 Reader
- Blood Pressure Reader
- Glucose Meter Reader
Digital Sensors
- Blood Oxygen Saturation (SpO2)
- Functional Near-Infrared Spectroscopy (FNIRS)