Both types use enhanced sensors with a photo-transistor trigger that provides a digital output denoting the presence or absence of liquid and have a polysulphone sensor dome that makes them suitable for hygiene applications. They offer solid state reliability with no moving parts, are TTL compatible, have a fast response and are reverse polarity and over-voltage protected. The high pressure on the LLN version is rated up to 25 bar.
Capable of operating over a wide temperature range, the Honeywell LLE and LLN liquid level sensors are available for both internal and external mounting, are CE certified and offer an extremely cost effective level sensing solution for a wide range of applications.