The Omron 61F-GP-N8H AC24 is a conductive level controller from the 61F series, configured for High/Low Level detection. It operates on 24VAC and outputs via a SPDT relay (2 Form C) rated at 3A @ 250VAC. Sensitivity is adjustable between 15kOhm and 70kOhm, and the control-to-sensor distance can reach 50m.
What the ratings mean for your panel
The 15kOhm to 70kOhm sensitivity range lets you tune the detection threshold for the conductivity of your process fluid — lower resistance for conductive liquids like water, higher for less conductive media. That 50m max sensor distance means the controller can sit in a central panel while the probes are out at the tank, as long as the cable run stays under 50m. The SPDT (2 Form C) relay gives you one normally-open and one normally-closed contact per pole — useful for driving both a pump and an alarm from the same level event. The 3A @ 250VAC contact rating handles small contactors or pilot lights directly; for larger loads, interpose a contactor. Socketable with an 8-pin octal base means replacement takes seconds — pull the old unit, plug in the new one. No rewiring, no downtime beyond the swap. The -10°C to 55°C operating range covers most indoor panel environments but watch for direct sun or heat sources near the enclosure.