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Madison Company Datasheets for Liquid Level Sensors

Liquid level sensors are used to detect liquid levels or interfaces between liquids such as oil and water or liquids and solids. 
Liquid Level Sensors: Learn more

Product Name Notes
In the M4302-7807-1, downward switch height adjustment by the end user can be as much as 2", and an upward adjustment can be as much as 9". This would allow...
In the M5602-7808-1, downward switch height adjustment by the end user can be as much as 2", and an upward adjustment can be as much as 9". This would allow...
Madison Company offers a series of low-cost radar sensors for continuous level measurement. This product series offers a logical extension to the ultrasonic sensor series, where application conditions are in...
Madison Company offers many of its liquid level switch products with high-temperature capabilities. A list of available models is on the reverse side. In addition, engineered designs to meet specific...
Madison Company’s "Mini Probe" is an addition to the full range of ultrasonic level sensors already offered. Its design is compact, extending just over 2" in height above the tank...
Tape Level Indicator, Brass Stem / Buna-N Float Wetted Materials: Stem/Fitting (Brass/316 Stainless Steel), Grip Ring (Beryllium Copper) Other fittings, floats and lengths available upon request. Custom lengths available up...
Tape Level Indicator, Stainless Steel Stem / Polypropylene Float Wetted Materials: Stem/Fitting (Brass/316 Stainless Steel), Grip Ring (Beryllium Copper) Other fittings, floats and lengths available upon request. Custom lengths available...
Tape Level Indicator, Stainless Steel Stem / Stainless Steel Float Wetted Materials: Stem/Fitting (Brass/316 Stainless Steel), Grip Ring (Beryllium Copper) Other fittings, floats and lengths available upon request. Custom lengths...
The M3200 liquid level switch has a stainless steel housing and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases. Applications include fuel...
The M3326 subminiature liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M3326-NO subminiature liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M3769 Interstitial Switch is a thin profile device designed for double-wall tanks and pipes. The 3/8" high switch is ideal for underground tanks and piping where the double-wall construction...
The M3782 liquid level switch has a brass stem and a Buna-N float and is equipped with a slosh shield. A slosh shield should be considered if your operating environment...
The M3784-110 Conductivity Switch (110 VAC) is designed for heavy-bodied or semisolid liquids. Madison supplies a basic controller (P/N R2-120) with the M3784 that will satisfy a broad range of...
The M3827-1 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3827-1NO side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3827-2 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3827-2NO side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3827-3 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3827-3NO side-mounted liquid level switch has a stainless steel stem and a stainless steel float. This side-mounted switch uses a vertical float that with a bent stem suited for...
The M3842 liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M4010 side-mounted liquid level switch has a brass stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases within a temperature...
The M4169-2-FM Drum Level Indicator is a fixed mount float design with a 316 stainless steel stem and float. This model is equipped with a low level alarm. Designed for...
The M4169-2-RM Drum Level Indicator is a remote mount float design with a 316 stainless steel stem and float. This model is equipped with a low level alarm. Designed for...
The M4182-AL Bilge/Bottle & Submersible Switche is constructed of a polypropylene float and an 6061 aluminum housing. This switch is designed for both bilge and external tank operation. This unit...
The M4182-SS Bilge/Bottle & Submersible Switche is constructed of a 316 stainless steel float and housing. This switch is designed for both bilge and external tank operation. This unit allows...
The M4182-SS-EP Bilge/Bottle & Submersible Switche is constructed of a 316 stainless steel float and housing. This switch is designed for both bilge and external tank operation. This unit allows...
The M4300 liquid level switch has a brass stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases within a temperature range...
The M4302-XXXX is a multi-point switch made with a brass stem and Buna-N floats. IMPORTANT: The number of float points and their locations are custom selected through the use of...
The M4500 miniature liquid level switch has a brass stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases within a temperature...
The M4502-XXXX is a multi-point switch made with a brass stem and Buna-N floats. IMPORTANT: The number of float points and their locations are custom selected through the use of...
The M5000 miniature liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as...
The M5000-E liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5002-XXXX is a multi-point switch made from 316 stainless steel stem and floats. IMPORTANT: The number of float points and their locations are custom selected through the use of...
The M5010 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as...
The M5600 liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5600-E liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5600-PR liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5600-SPDT liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5601 liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5602-XXXX is a multi-point switch made from 316 stainless steel stem and floats. IMPORTANT: The number of float points and their locations are custom selected through the use of...
The M5900 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as...
The M5917 liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as food...
The M5970 side-mounted liquid level switch has a stainless steel stem and a stainless steel float. Stainless steel stems and floats are well suited for corrosive environments as well as...
The M7000 miniature liquid level switch has a PBT stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases. Applications include fuel...
The M7000B miniature liquid level switch has a PBT stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases.
The M7700 side-mounted liquid level switch has a PBT stem and a PBT float. PBT is a stong plastic that features excellent structural integrity. It is best used where temperature...
The M7740 side-mounted liquid level switch has a PBT stem and a PBT float. PBT is a stong plastic that features excellent structural integrity. It is best used where temperature...
The M7790 side-mounted liquid level switch has a PBT stem and a PBT float. PBT is a stong plastic that features excellent structural integrity. It is best used where temperature...
The M8000 miniature liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8000-C miniature liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8080-XXXX is a multi-point switch made with a polypropylene stem and polypropylene floats. IMPORTANT: The number of float points and their locations are custom selected through the use of...
The M8085 is a multi-point switch made with a polypropylene stem and polypropylene floats and a 1/4" NPT Fitting. Operation set points are 3/4" and 5-3/4" from bottom of fitting.
The M8700 side-mounted liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8750 side-mounted liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8790 side-mounted liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8790-14/4184 side-mounted liquid level switch has a polypropylene stem and a polypropylene float. Polypropylene is typically suitable for use with acidic liquids such as those found in electroplating and...
The M8802-XXXX is a multi-point switch made with a polypropylene stem and polypropylene floats. Various mounting options are available for this unit. Please contact the Madison Company Sales Department for...
The M9000 miniature liquid level switch has a Kynar stem and a Kynar float. Kynar has chemical and solvent resistant proprties and the high purity of the material make it...
The M9700 side-mounted liquid level switch has a Kynar stem and a Kynar float. Kynar has chemical and solvent resistant proprties and the high purity of the material make it...
The Madison PC4203 clog free submersible pressure level sensor is specifically designed for hydrostatic pressure level measurements of wastewaters or liquids which will clog most other sensors and is ideal...
The Madison U3M Mini Ultrasonic Sensor is for drum applications requiring a non-contact level device. This sensor mounts directly into a 3/4" NPT bung and requires a power source. The...
The MS5600 liquid level switch has a stainless steel stem and a stainless steel float and is equipped with a slosh shield. A slosh shield should be considered if your...
The MS5600-PR liquid level switch has a stainless steel stem and a stainless steel float and is equipped with a slosh shield. A slosh shield should be considered if your...
The MS5600-SPDT liquid level switch has a stainless steel stem and a stainless steel float and is equipped with a slosh shield. A slosh shield should be considered if your...
The MS5917 liquid level switch has a stainless steel stem and a stainless steel float and is equipped with a slosh shield. A slosh shield should be considered if your...
The MS8000 miniature liquid level switch has a polypropylene stem and a polypropylene float and is equipped with a slosh shield. A slosh shield should be considered if your operating...
The MS8000B miniature liquid level switch has a polypropylene stem and a polypropylene float and is equipped with a slosh shield. A slosh shield should be considered if your operating...
The MSB7800 liquid level switch has a PBT stem and a Buna-N float. Buna-N is typically suitable for use with aromatic hydrocarbons, diluted acids, and bases. Applications include fuel tanks,...
The PH4201-015- Series Hydrostatic submersible pressure level sensors are specifically designed for pressure and hydrostatic level measurements of groundwater, wastewater, process liquids or sea water. Ideal for sensing liquid level...