Madison Company's Tilt Float Switches are the perfect solution for reliable and affordable level detection in large open vessels, water tanks, reservoirs, sumps and ponds. Three different designs are available to suit your individual application.

The molded rubber float has an integral three-conductor cable and operates on a micro-switch device that is located inside the float on an anti-vibration mount.

The rubber float is constructed of ethylene propylene diene (EPDM), a synthetic rubber with rigid and durable characteristics for long service life and resistance to heat, oxidation, ozone and aging due to weather. As a non-polar elastomer, EPDM has good electrical resistivity, as well as resistance to polar ...

Constructed of higher gauge stainless steel stems, our Full-Size Liquid Level Float Switches are built with larger floats (typically 1-1/2" to 2" diameter) that provide greater bouancy for use in liquids that have lower specific gravities.

High reliability magnetic reed switch technology assures repeatability at an economical price.  Well suited for use in many industrial and OEM applications including food, appliance, medical, petrochemical, and water and wastewater.

Click here to view our Single Point Switch application video.

Features

• Single-point level ...
  
  

Madison Company offers a complete line of standard Stainless Steel Miniature Liquid Level Float Switches. In addition, Madison Company designs specific liquid level switches for OEM tank level applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Direct interface to controllers ...
  
  

Madison offers a complete line of standard Side-Mounted Liquid Level Float Switches. These products continue to meet the needs of applications in many markets, at competitive prices. In addition, Madison Company offers the capability to design specific liquid level switches for OEM applications that require unique considerations in materials, configurations and system interfacing.

Engineered designs incorporate more than 45 years of experience in liquid level switch applications in a variety of environments and installation configurations. High reliability of the magnetic reed switch technology assures repeatability at an economical price. Our design experience and flexible manufacturing techniques also offer ...

Our entire product offering of Plastic Full Size Single Point Liquid Level Float Switches is designed for high reliability using the magnetic float switch technology, which assures repeatability at an economical price.

In addition, Madison Company designs specific liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials ...
  
  

Madison Company offers a complete line of standard Single Point Plastic Miniature Liquid Level Float Switches.  Madison Company can also custom design specific liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Direct interface to ...
  
  

Madison offers a complete line of standard Plastic Side Mounted Liquid Level Float Switches. We also offer in-house engineering capability to design liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Three basic sizes: ...
  
  

Madison Company offers a complete line of standard Plastic Subminiature Liquid Level Switches. We can also custom engineer specific liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Direct interface to controllers ...
  
  

Complete line of standard Brass Liquid Level Float Switches, which are ideal for use in tank level applications for hydrocarbons.  Madison Company can also design custom liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Direct interface to ...
  
  

Madison Company offers a complete line of standard Brass Miniature Liquid Level Switches. These liquid level indicators are suitable for tank level appications involving hydrocarbons.  Design services for custom switches is also available to meet specific liquid level switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic point ...
  
  

Standard product offering of Brass Side-Mounted Liquid Level Switches to meet your needs. Suitable for applications involving tank level indication of hydrocarbons.  In addition, Madison Company designs specific liquid level switches for OEM tank level applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability ...
  
  

Madison Company offers a complete line of standard Metric Full Size Liquid Level Switches. In addition, Madison Company can design custom engineered liquid level switches for OEM tank level applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Three basic sizes: full, ...
  
  

Madison offers a complete line of standard and custom designed Metric Miniature Liquid Level Float Switches. Whenever necessary, Madison Company can custom design liquid level switches for any type of OEM application.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switcha application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Three basic sizes: full, miniature and subminiature ...
  
  

Madison Company offers a complete line of standard Metric Liquid Level Switches. In addition, Madison Company designs specific liquid level float switches for OEM applications that require unique materials, configurations and system interfaces.

High reliability of the magnetic reed switch technology assures repeatability at an economical price.

Click here to view our Single Point Switch application video.

Features

• Single-point
• Magnetic float switch technology
• High reliability
• Wide selection of available materials
• Three basic sizes: full, miniature and subminiature ...
  
  

Standard family of water-activated level switches designed for condensate return systems in HVAC and HVACR systems. These condensate level float switches can be used for the return of hot condensate in a boiler system, in an air conditioning condensate line, or to give a signal to a pump or compressor control when water is detected in the drain pan.

The M8000-C float switch is designed for either a press fit into a standard 3/4” schedule 40 PVC pipe tee allowing for future clean out, or glued in place using standard PVC pipe cement. This vertically mounted switch will provide an excellent level signal at up to a 30° angle and incorporates a vent hole for line air to escape.

The M8000, also a vertically ...

Madison Company offers many of its liquid level switch products with high-temperature capabilities.  In addition, engineered designs to meet specific application needs can be provided. Such designs will deal with harsh environments such as high temperature and pressure and ensure material compatibility.

Using highly reliable magnetic float switch technology, units capable of reliable operation at temperatures as high as 300°C (572°F) and pressures of up to 1500 PSI (103 BAR) have been designed. Such harsh-environment switches can incorporate Madison's temperature sensors, offering the combination of both point level indication and temperature measurement within the same level switch design. This can eliminate costs ...

Search Harsh Environment Stainless Steel Level Switches - 40 Items

A complete line of level switches that offer all wetted polytetrafluorethylene (PTFE) materials. PTFE is a chemically inert material that offers exceptional performance when aggressive solvents such as alcohols, esters and ketones, or other corrosive acids and bases, oils, steam and most chemicals, are present in your application.

These M Series switches are ideal for medical, pharmaceutical and food or beverage applications where high-purity contact is essential. Other applications with stringent requirements, such as electronic component manufacturing, sterilization systems and those systems requiring biosafety performance standards of the liquid level switch, will find this Madison material capability suitable. ...

The M4065 side-mounted liquid level switch has both a rugged design and sufficient electrical switch power to eliminate the need for separate relays in your current.

As with all Madison side-mount designs, the M4065 "Tank Commander" is intended for mounting through a tank’s side wall utilizing a 1 1/2" NPT through hole.

The switch’s electrical ratings allow for direct switching control of a pump’s on/off action. This eliminates the need for intermediate relays, along with their associated costs.

The M4065 basic design allows for field disassembly and cleaning when used in liquids containing contaminants or causing residual build-up. This can extend the switch’s serviceable life with ...

Madison Company’s M4190 family of side-mounted liquid level switches features a robust design for heavy industrial tank applications.

Their corrosion-resistant construction, in conjunction with standard SPDT switch operation, provides for simplified wiring of control circuits. The M4190’s standard end thread is a 1/2" NPT stub for easy connection to common junction boxes or conduit.

The base model M4190 features 304 stainless steel construction, including the float. The M4190-BU offers a Buna-N float for hydrocarbon liquids, and the M4190-HP offers a float rated for 900 PSI operational performance.

The standard configuration can be modified to address specific application requirements. Consult Madison ...

The standard model M3782 Liquid Level Switch that can be fully submerged with 20' of 22 AWG HALAR® jacketed 2-conductor wire. This model is weighted for suspension in non-magnetic tanks and can be used in conjunction with a still pipe. Its materials are suitable for water, hydrocarbons and certain chemicals. Contact Madison Company to check on material compatibility.

This low-cost switch is ideally suited for sumps, dispenser pans, monitoring wells and double-wall tanks where monitoring for leaks is required. The depth of the vertical mount can be easily adjusted by cutting the cable length as required.

This standard model can also be customized to meet your specific application needs. Simply complete the M ...

• Thin ...
  
  

Madison Company offers its newest universal design for bilge and external tank applications. The M4182 Series is a standard liquid level switch product available in four housing material configurations. These Bilge/Bottle models allow for in-field replacement of the float switch, helping to ensure minimal down time in applications where they are used. The same highly reliable liquid level switch technology used in other Madison Company reed switch products is also used in the M4182.

This design supplements the M4147 bracket mounted liquid level switch and the other submersible switches referenced on the back side of this sheet, which have been long-standing solutions for bilge and sump applications. The M4182 family of designs ...

Madison Company’s engineered designs can provide a liquid level switch for tank applications with slight changes in the level at which the switch signal is needed, to accommodate multiple tank designs or conditions.  The M4302-7807 series is constructed of a Brass Stem with a Buna Float and the M5602-7808 series is constructed of a Stainless Steel Stem and Stainless Steel Float.

In this unique series of switches, downward switch height adjustment by the end user can be as much as 2", ...

Madison Company offers a standard Liquid Level Side-Mounted Switch that has a 1/4" male spade connector for simplified electrical installation. The mounting is a 1/2" NPT thread for a vessel wall through hole. Both design features provide for easy field maintenance.

The M7725 is constructed of PBT (Polybutylene Terephthalate) with an operating temperature up to 130°C for most hydrocarbon liquids. PBT should not be used in water over 65°C. The M8725 is all polypropylene, for general-purpose applications and those involving highly acidic liquids. Its operating temperature should not exceed 105°C.

The M8750 and M8755 (not shown) are similar to the M8725 but come with 24" 22 ga. MTW wire leads. All models are ...

The M3827 is a traditional style reed switch in a new design. This all stainless steel side mounted switch is engineered such that the magnetically-actuated reed switch will not come in contact with the fluid being monitored. The float is attached to an extended pivot arm that, when moved, triggers the switch function.

This design makes the M3827 ideal for use in heavy-bodied liquids or in fluids containing metal particles that would otherwise be attracted to a conventional style float. This level switch has a compact installed height of 3 1/2" from switch to float and is available Normally Open (NO) or Normally Closed (NC). The M3827 is offered in a choice of three mounting styles: 1/8" NPT, 1/2" NPT and 1/2-13 ...