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Greisinger GRA 0420 VO Plug In Controller Display for Universal Use Greisinger GRA 0420 VO P The Greisinger GRA 0420 VO is a Plug In Controller Display for monitoring and controlling devices for universal use P P The device has an input for a standard signal 4 to 20mA The connection is made by a simple elbow type plug according to EN 175301 803 A to a transmitter P P The Controller provides a switching output NPN output that can be configured as 2 point controller or min max alar
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