:The Sick 6039773 liquid level sensor is a PNP output device with a temperature range of -40÷150°C. It operates on a 9.6÷35VDC power supply and is IP65 rated for protection against dust, water, and other harmful environmental factors. This type of sensor is well suited for applications that require monitoring the level of liquid in a tank or container. It can provide reliable measurements of level, overfill and dry-run protection, as well as visual indication through the integrated electrical contacts.