ANALOG MONITORING RELAY FILL LEVEL MONITORING RESISTANCE MONITORING FROM 2 TO 200 KOHM OVERSHOOT AND UNDERSHOOT SUPPLY VOLTAGE: 24 V AC/DC DC AND AC 50 TO 60 HZ NO GALVANIC ISOLATION FROM MEASURING CIRCUIT 2-POINT OR 1-POINT CONTROL TRIPPING DELAY 0.5 TO 10S 1 CO CONTACT SCREW TERMINAL REPLACEMENT PRODUCT FOR 3UG3501-1AC20