Level Transmitter/Level Switch <Liquid>
Float Type Level Switch

Level switch that uses buoyancy of a float to detect liquid level in a tank or container. Please use with liquids such as water, oil, and chemical solutions.


  1. Multi-contact level measurement can be constructed at low cost.
  2. It is not affected by the electrical characteristics (capacitance, conductivity, etc.) of object to be measured.
  3. SUS304, SUS316, PVC, and PP materials can be selected and can be used in corrosion-resistant environments.
  4. By using a reed switch, it is less susceptible to effects of temperature, humidity, gas, etc., achieving stable detection.
  5. It can also be used in sites where explosion-proof type (d2G4) is required.

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Features of Float Type Level Switch

Detect up to 4 points with one device!

One level switch can output up to 4 points of contact, making it possible to construct level measurement at a low cost.

*Please contact us if you need 4 or more contacts.

Adopts reed switch

It is highly reliable as it uses a durable reed switch.

No power required.

It uses a float with a built-in magnet that moves up and down due to buoyancy of liquid, so no power source is required.

Explosion-proof compatible

Compatible with explosion-proof specifications (d2G4). Ideal for automatic control of fuel dispensing tanks.

Operating principle

A float with a built-in magnet moves up and down according to liquid level, and reed switch built into main body is turned on and off by magnetic force.

How to use?


Please install it in a place away from strong magnetic forces such as motors, transformers, solenoid valves, etc.

2. Mounting

Avoid using the product in areas with strong currents, such as inlet, outlet, locations that come into direct contact with water, and locations with agitators.

3. Wiring

No power required.
Please perform contact wiring.

4. Adjustment

Detection position cannot be adjusted on site. Please specify detection position when ordering. It will be adjusted at the factory and shipped.

*Please see the instruction manual for details.

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Model lineup

●MFS series


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If you are having trouble with monitoring or
automating production sites,
Please consult with us.

Please feel free to contact us if you have any questions.
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