HPQ LIQUID LEVEL DETECTOR HPQ-T1-002.

LIQUID LEVEL DETECTOR 0-28 VDC, Pipe Mounted Liquid Level Detection Photoelectric, NPN Output, Light Operated, Suitable for 8-13mm Diameter pipes, Prewired

HPQ-T2.

0-28 VDC, Pipe Mounted Liquid Level Detection Photoelectric, PNP Output, Selectable Light or Dark Operated, Suitable for 8-13mm Diameter pipes, Prewired

HPQ LIQUID LEVEL DETECTOR HPQ-T1-003.

LIQUID LEVEL DETECTOR 0-28 VDC, Pipe Mounted Liquid Level Detection Photoelectric, NPN Output, Dark Operated, Suitable for 8-13mm Diameter pipes, Prewired

HPQ LIQUID LEVEL DETECTOR HPQ-T2-005.

LIQUID LEVEL DETECTOR 0-28 VDC, Pipe Mounted Liquid Level Detection Photoelectric, PNP Output, Selectable Light or Dark Operated, Suitable for 3-7mm Diameter pipes, Prewired