supply of two wire temp . transmitter , supply of items as per following specifications , head mounted 2 wire temperature transmitter , type : analog , intrinsica lly safe , range : 0-200 degc , input : pt100 rtd ( 3-wire ) , output : 4-2 0 madc , standard : din 43760 , supply : 24 vdc , od ( max ) : 45 mm , thickn ess ( max ) : 25 mm , accessories : head mounting kit required . , head mounted 2 wire temperature transmitter , type : analog , intrilnsic ally safe , range : 0-500 degc , input : pt100 rtd ( 3-wire ) , output : 4- 20 madc , standard : din 43760 , supply : 24 vdc , od ( max ) : 45 mm , thick ness ( max ) : 25 mm , accessories : head mounting kit required .