Capacitive sensors do not touch or make direct contact with the system being sensed, making them a preferred option for industrial linear and angular position sensors and contactless potentiometers, where harsh or explosive environments make other sensor technologies impractical.
Capacitive sensors are often favored for their small size and lower power consumption over resistive bridge sensors. The ZSSC3122 supports this view with an operating current as low as 60uA over the entire voltage range of 1.8V to 5.5V.