Gewiss - GW21966 referenced 2-CHANNEL INPUT MODULE(230V)1MOD.SY/BK product produced by high technology. GW21966 became irreplaceable of foundations. GW21966 referenced product which is satisfy the customer's needs, offers advantages of quality and cost. It produced result of tests of laborotory for years. GW21966 referenced product is an original piece of your foundation or machine, original parts makes your machine live longer.
