Schmersal - P/N: 151156129, Type: Z1R 236-11Z-M20 referenced position switch product produced by high technology. P/N: 151156129, Type: Z1R 236-11Z-M20 became irreplaceable of foundations. P/N: 151156129, Type: Z1R 236-11Z-M20 referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. P/N: 151156129, Type: Z1R 236-11Z-M20 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.