For the DIYers and tinkerers working on automation or machine projects, this Heschen sensor is a handy little component. It's an M12 capacitive proximity sensor. In simple terms, it can detect the presence of an object (any dielectric material – so not just metal) without touching it, from about 2mm away.
The output type is PNP and Normally Closed (NC). It operates on a common 10-30VDC power range and can handle up to 200mA of current, so it can connect directly to a PLC or other controller. It has a red LED that lights up when it detects something, which is great for troubleshooting.
It's a shielded type, meaning it can detect objects from the front but is less sensitive from the sides. It's housed in a durable body with an IP67 rating, so it's protected against dust and temporary water immersion. The cable is about 59 inches (150cm) long. It's an economical and reliable sensor for replacing mechanical limit switches or adding non-contact detection to your project.