What it is and what the ratings mean
The Omron K3GN-NDT1-FLK 24VDC is a panel-mount process meter from the K3GN series, designed to display a 4-20 mA or ±10 VDC analog signal on a 5-digit LCD with dual-color backlight. The 4-20 mA input is the standard loop-powered signal from pressure, temperature, or flow transmitters — so this meter directly replaces a dead panel indicator without re-scaling the loop. The ±10 VDC range covers most 0-10 V transmitter outputs. The IP66 front rating means the display face handles washdown splashes and dust, suitable for food-and-bev or packaging lines where a hose-down is routine.
Mounting and integration
Panel mount into a rectangular cutout 45.00 mm x 22.20 mm — that's a standard 1/8 DIN-ish footprint, so it fits existing panel punches without rework. Screw terminal connections, 24 VDC supply. The three solid-state outputs can drive a remote alarm or PLC input directly; the serial communications output (likely RS-485 or similar) lets you poll the reading over a Modbus-style link if the rest of the line speaks it. Operating range -10°C to 55°C covers most indoor panel environments.