• Just by mounting the switch on a pipe, the surface of the liquid can be easily detected.
• 【Feature】
• Refraction-based detection ensures sufficient gain between light-ON and dark-ON light level.
• Suitable for liquids with poor transmission (such as photo-resist liquid and waste fluids)
• Switches fit on pipes with diameters of ∮8 to 13cm
• Can be mounted using a cable or M3 screw
• Indicator and operation selector switch are located on the side.
• Even when switches are gang-mounted, they can be adjusted while viewing the indicator
• Same models handles upper or lower limit detection

Need more information , Click : Wet Process Switches and Optical Fiber Units - HPQ-T