A digital sensor is an electronic or electrochemical sensor, where data conversion and data transmission are done digitally.

Electronic and electrochemical sensors are typically one part of a measuring chain.

Various methods can be used to detect TNT including optical and electrochemical sensors and explosive-sniffing dogs.

Such technology could lend itself well to solid-state electrochemical sensors on microdevices.

In the third type of electrochemical sensor, auxiliary phases are added to the electrodes to enhance the selectivity and stability.

The electrochemical sensor is sensitive to alcohol vapors, and requires recalibration over time.

ChemDAQ and most other gas monitor manufacturers mainly use electrochemical sensors for toxic gases because of their many advantages.

While electrochemical sensors offer many advantages, they are not suitable for every gas.

In recent years, new methods for tracking biomolecules have been developed including the use of colorimetric biosensors, photochromic compounds, biomaterials, and electrochemical sensors.

Fluorescent tags can be used in conjunction with electrochemical sensors for ease of detection in a biological system.