ORP METER SENSOR,, SIZE: 3/4”, RANGE: -2000/2000MV, LOCATION: SENSOR IN LINE, MANUFACTURER PART NO: O74D-25, MANUFACTURER: MYRON, ISOLATED 0-10 VDC RECORDER OUTPUT STANDARD, IP65/NEMA 4X WATER RESISTANT AND CORROSION-PROOF ENCLOSURE, BUILT-IN ELECTRONIC CALIBRATION, SINGLE SET POINT/ALARM STANDARD, ADJUSTABLE SET POINT HYSTERESIS, SOLID STATE 24 VDC OUTPUT, 10 AMP RELAY OPERATES ON CHOICE OF INCREASING OR DECREASING READING, PUSH-TO-TEST SET POINT CHECK, INTERNAL SET POINT DISCOURAGES UNAUTHORIZED ADJUSTMENT, SELECTABLE 115/230 VAC, YLNG DRAWING Nº: YE-001-37-342-LIS-00054, YLNG TAG NO.:, 37-AT-8801-06-42, MANUFACTURER PART NO: 72