D511/7D pressure switch 0840181 /0840281/ 0840381 /0840481
Shanghai Far East Instrument
The controller adopts a bellows sensor and can be used for corrosive gas and liquid media. The set value of the controller is adjustable, and the adjustment range is -01.... 6.3 MPa 
D500/7D explosion-proof pressure controller 0854580/ 0854680/ 0854780
D502/7D explosion-proof pressure controller 0850180/ 0850280
D511/7DZ Dual Contact Pressure Controller 0811112/ 0811212 /0811312
D530/7DDK Differential Pressure Switch 0819213/ 0819313/ 0819413/ 0819513