These products have an IP67 sealing class. That means a completely closed housing and completely protected against dust. The products are suitable for wet environments. Water cannot penetrate when the product is immersed for a duration of up to 30 minutes at 1 meter depth.
The PFM1/BN-2H is an inductive proximity from Micro Detectors switch in a metal M12 housing and equipped with a NPN-NO+NC switching output. The sensor is non-flush mountable and has a range up to 4 mm.
The PFM1/BN-4H is an inductive proximity from Micro Detectors switch in a metal M12 housing and equipped with a NPN-NO+NC switching output. The sensor is non-flush mountable and has a range up to 8 mm.