Reliable devices for surface level monitoring and control

QMI have been the UK distributor of Kari Finn float switches for more than 45 years.

Many of the popular float switches are stocked in our London-based office and can be dispatched for next day delivery. Non-stock items will have a slightly longer lead-time and will be sent directly from the manufacturer. 

High Quality and Reliable Float Switches

Kari Finn are a well established manufacturer of high-quality surface switches, multi-pole connectors and pump starters.

Kari float switches are cable-suspended free floating control devices. They are used to detect and control wastewater levels, liquids generated by industry, liquids with varying degree of viscosity, liquids in wells, pump systems and tanks.

A control weight fixed to the cable keeps it immersed in the liquid, causing the switch to tilt in line with fluctuations in the liquid level The revolutionary design avoids the need for several single-point float switches in one tank, preventing the risk of tangling as liquid level rise and fall.

Why Choose Kari Finn Float Switches?

  • Multiple level switches available in a single float
  • A wide range of standard products and bespoke solutions
  • Compact design and high reliability in a variety of conditions
  • Easy-to-adjust switch operation levels
  • Compatible for use with the majority of liquids and in demanding applications
  • Various cable lengths and options, tailored to specific needs
  • An environmentally friendly solution without mercury or lead
  • Safe use with hazardous liquids
  • Easy installation and no maintenance requirements
  • 55 years experience of producing high quality equipment that is used Globally
The renowned KARI float switch is a control device for magnetic valves. It is also an alarm device that alerts the user at specified surface levels.

The KARI EL22 electrode switch is designed for the control of conductive liquids.

KARI Exi relay makes the float switch suitable for potentially explosive atmospheres (ATEX).

Featured products

KARI pkl Multipin connector
The KARI PKL is a watertight and reliable cable connector designed for submersible pumps. it helps to create considerable savings on pump maintenance costs. Thanks to the KARI PKL design, the pump can be disconnected and reconnected without the need for an electrician to perform the task.
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KARI float switch 1C | 1H | 1L
The KARI float switch is a control device for magnetic valves or an alarm device that alerts the user at specified surface levels. Thanks to its large float casing (Ø 170 mm), the KARI float switch has a buoyancy that guarantees smooth, trouble-free operation under all conditions. SGS FIMKO Oy (the Finnish Electrical Inspectorate) has performed testing in accordance with the Low Voltage Directive (LVD) and approved the KARI float switch for use in non-flammable liquids at 250 volts.
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KARI float switches 2H | 2L | 2Y | 2A | 2HL
The KARI Float Switches is a control device for charging and discharging pumps and motors and magnetic valves. It is also an alarm device that alerts the user at specified levels. Thanks to its large float causing (Ø 170 mm), the KARI Float Switch has a buoyancy that guarantees smooth, troublefree operation under all conditions.
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KARI float switches 3H | 3L | 3Y | 3A | 3HE | 3LE | 3YE | 3AE
The KARI Float Switch is a control device for charging and discharging pumps and motors and magnetic valves. It is also an alarm device that alerts the user at specified levels. Thanks to its large float casing (Ø 170 mm), the KARI Float Switch has a buoyancy that guarantees smooth, troublefree operation under all conditions.
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