The KY98E021 is a capacitive sensor manufactured by IPF ELECTRONIC with a PNP/NO output configuration, an input voltage range of 10-30 VDC, and a 4-PIN design. It is a standard non-modulated, flush-mounted capacitive sensor that performs reliably in almost any environment. With its slim, robust and reliable design, the KY98E021 can detect the presence of objects even in rough and complex industrial applications. Furthermore, its non-contact sensing technology offers excellent performance under challenging conditions, such as in contaminated, high humidity, high temperature and/or other harsh environments.