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2A7 / 2C7 AND VARIATIONS
CONNECT PIN #2 TO THE SENDER. CONNECT PIN #5 TO GROUND. CONNECT PIN #4 TO 12 / 24 VOLTS. ( MASTER SWITCH ) MAKE CERTAIN THAT THE SENDER IS GROUNDED. NOTE! THE GAUGE MUST MATCH THE SENDERS RESISTANCE. ie 240 OHM or 30 OHM