The M30 CR3015DP PNP NO capacitive proximity switch is a cylindrical water level sensor designed for longdistance, noncontact detection. It combines a compact M30 form factor with a capacitive sensing element to monitor liquid levels without direct contact, supporting reliable level control in compact spaces and challenging environments. Key benefits Noncontact water level sensing reduces wear, contamination risk, and maintenance. Long sensing distance enables monitoring from a distance or through barriers, improving safety and simplicity of installations. PNP normally open (NO) output provides straightforward integration with common control systems and PLCs. M30 cylindrical housing offers a compact, standard mounting profile for easy retrofits and installations. Suitable for detecting nonmetallic liquids within tanks, tubes, and vessels, enabling precise level control without direct liquid exposure to sensors. Clear, reliable switching behavior supports automated level management, alarms, and interlocks. Key attributes Functionality: capacitive proximity switch configured as a PNP NO device with longdistance sensing for liquid level detection. Compatibility: designed to interface with standard control circuits and PLC inputs using a PNP NO output. Size and form factor: M30 cylindrical housing for compact installation and standard mounting. Sensing target: optimized for detecting nonmetallic liquids such as water in tanks, containers, and vessels. Performance orientation: longdistance capacitive sensing intended to provide reliable level indication with minimal contact or intrusion. What this product does Detects the presence or absence of liquid levels from a distance without physical contact with the liquid. Provides a normally open switching output that can be wired into automation circuits for level control, pumps, alarms, or interlocks. Improves system reliability by reducing wear and corrosion exposure that can occur with contactbased sensors. Two to three common applications Water level monitoring in storage tanks or sumps: use the M30 CR3015DP to trigger pumps or alarms when liquid level changes, without inserting probes into the liquid. Liquid level control in processing lines: employ the sensor to maintain a desired liquid level in small to midsized vessels where space is limited. Nonmetallic liquid level sensing in containers or poly tanks: detect water or other nonmetallic liquids to automate filling, draining, or isolation sequences. Simplified integration notes Output type: PNP normally open to connect with positiveswitching inputs typical of PLCs and automation controllers. Mounting: conforms to an M30 cylinder form factor, enabling straightforward mounting in standard fixtures and brackets. Target compatibility: suitable for nonmetallic liquids where capacitive sensing provides effective detection without direct contact. This product combines a robust cylindrical form with capacitive sensing to deliver longrange, noncontact liquid level detection in compact installations. It is designed to support reliable level control where direct sensor immersion is undesirable, providing a practical solution for water level monitoring and related applications.