The Omron 61F-GP-N8L-4KM AC240 is a High/Low Level controller from the 61F series, built for tank-level monitoring and control. It runs on a 240VAC supply and switches a SPDT (2 Form C) relay rated at 3A @ 250VAC — enough to kick a pump contactor or a solenoid valve directly. The sensitivity range of 0 ~ 0.5kOhm means it detects conductive liquids (water, mild chemicals) through a pair of probes; the 4km max distance between the controller and the sensor head makes it a good fit for remote tank farms or large reservoirs where the panel sits a long way from the tank. It mounts into an 8-pin octal socket (plug-in termination), so swapping a failed unit takes seconds — no re-wiring the panel.

Omron 61F-GP-N8L-4KM AC240 Level Controller, 240VAC, 4km
MPN61F-GP-N8L-4KM AC240
Active
Omron Series 61F High/Low Level Controller, 240VAC, SPDT Relay Output, Socketable, 0~0.5kOhm Sensitivity, 4km Max Sensor Distance.
$314.97 – $324.51Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | 61F |
| Parameter | Value |
|---|---|
| Contact form | SPDT (2 Form C) |
| Contact rating at voltage | 3A @ 250VAC |
| Parameter | Value |
|---|---|
| Supply voltage range | 240VAC |
| Parameter | Value |
|---|---|
| Type | High/Low Level |
| Parameter | Value |
|---|---|
| Mounting type | Socketable |
| Termination style | Plug In, 8 Pin (Octal) |
| Parameter | Value |
|---|---|
| Operating temperature range | -10°C ~ 55°C |
| Parameter | Value |
|---|---|
| Weight | 0.342 lb (155.13 g) |
| Output signal | Relay |
| Sensitivity | 0 ~ 0.5kOhm |
| Distance - control to sensor | 4km |
Product details
Frequently asked questions
What is the 61F-GP-N8L-4KM AC240 used for?
It is a High/Low Level controller that detects conductive liquid levels (water, mild chemicals) via probes, with a sensitivity of 0 to 0.5 kOhm and a relay output rated at 3A @ 250VAC for driving pumps or valves.
MPN
61F-GP-N8L-4KM AC240