Thanks to its innovative chip-in-oil-technology, KELLER Pressure’s 21C series offers a particularly compact and energy-efficient solution for precise pressure measurement – specially designed for applications where space is critical.

The 21C series pressure transmitters boast an impressively robust design, low power consumption and optimum value for money. They are also ideal for use in mobile or battery-operated systems.

The 21C series is based on a piezoresistive pressure measuring cell, which is compensated over the entire temperature range. The ratiometric voltage output, hermetically sealed electronics and parts that come into contact with media made from stainless steel ensure maximum reliability, longevity and flexibility – even under challenging operating conditions.

Typical areas of application for the 21C series include, among other things, refrigeration and air-conditioning technology, pneumatics, hydraulics, the automotive industry and pump technology.