We require Ferrous Metal Sensors-Non-powered like the RS Radionics ferrous metal sensor switch attached, but RS Radionics don't do it in a normally closed (NC) or changeover. Please see attached detail off a Ferrous Metal Sensors - Non-powered, but it is a normally open (NO) We need it in a normally closed (NC) Show More...
We require Ferrous Metal Sensors-Non-powered like the RS Radionics ferrous metal sensor switch attached, but RS Radionics don't do it in a normally closed (NC) or changeover. Please see attached detail off a Ferrous Metal Sensors - Non-powered, but it is a normally open (NO) We need it in a normally closed (NC) Show More...