Flowline, LI23-1201, DataLoop General Purpose Level Indicator with 2 Relays The general purpose loop powered level indicator displays engineering units connected in series with one 4-20 mA level transmitter. Features: Easy configuration via the push button display module LCD main display with secondary unit and bar graph display DIN enclosure with NEMA 4X faceplate and shallow case Linear, square root and programmable exponent functions Non-volatile memory with security password protection