Azbil HPF Fiber units are available in a wide range of models for various applications and environments. Azbil HPF Contact-Type Liquid Level Fiber Units all-resin structure ensures no metal contamination 4mm diameter allow easy running of cables. Proprietary tip structure prevents liquid from clinging to the top, eliminating a cause of faulty operation. When used with a Model HPX-EG amplifier (sold separately), you can set sensitivity – an easy setup can be done without the process liquid.