Switches • Level Switches

Electro-mechanical device used to sense the level of media in a container, opening or closing a digital switch to indicate status change.

Electro-mechanical device used to sense the level of media in a container, opening or closing a digital switch to indicate status change.

Filter by state

  • Dwyer Instruments, Inc.

    Dwyer Instruments, Inc. offers a variety of level switches, including: tilt, optical, displacer, conductivity, and capacitive. Switches have a variety of feature options, including: compact, LED indication, non-mercury probes, adjustable time-delay, fixed/adjustable deadband, hermetic sealing, multiple stages, differential level service, tank high/low control, etc. Sensors are made from 316 stainless steel, PFA, and polysulfone materials. Other products offered by Dwyer include: ultrasonic, tuning fork, inductive, float, diaphragm, etc.

  • Thomas Products, Ltd., Flow Switch Div.

    Thomas Products, Ltd. offers side mounted, pancake, and bottle level switches. Switches have operating pressures ranging from 50 to 2500 PSIG, operating temperatures ranging from -40 to 450°F, and mounting sizes ranging from 1/8" to 1" NPT. Switches are made from the following materials: PVC, stainless steel, cunife magnet, hysol epoxy, beryllium copper, 316 stainless, etc. Switch applications include: leak detection, viscous liquids, contaminated/dirty liquids, etc. Other switch products offered by Thomas include: liquid level indicators, single level, custom level, and associated accessories.

  • Omega Engineering, Inc.

    Omegan Engineering, Inc. offers a variety of level switches, including: ultrasonic point, tuning fork, solid state RF, optic & leak detection, and buoyancy. LVU-A700 Series solid state liquid level switches have temperatures ranging from -20 to 160°F, an input power range from 6 to 24 VDC, and pressures up to 1000 PSIG. Other product features include: ultrasonic technology, solid state integral electronics, full epoxy-sealing, etc. Other switches offered by Omegan include: relays, dry material switches, horizontal/slide mount, vertical mount float, controllers, etc.

  • Cole-Parmer

    Cole-Parmer offers a variety of liquid level float switches and controllers. Switches accept 120/240 VAC, they operate as normally open or closed, and are hermetically sealed for durability/long life. Other features include: a mount size up to 5/8", a maximum PSI of 300, and an operating temperature range of 40 to 225°F. Switches are constructed from the following materials: CPVC, 316 stainless steel, Buna-N, brass, epoxy, Kynar PVDF, 304 stainless steel, polycarbonate, beryllium, copper, polypropylene, etc.

  • Gems Sensors & Controls

    Gems Sensors & Controls offers single and multi-point level switches. Available configurations include: float level, exosense piezo-resonant, ultrasonic level, capacative level, electro-optic level, and multi-point float. LS-800-5 Series single-point level switches come with 3/4" brass or stainless steel NPT ports, they feature mounts outside the tank, and are ideal for small to large tank applications. LS-350 Series multi-point level switches are custom configurable, they have integral siphon/fill tubes, and can get up to 4 actuation levels.

  • Madison Co.

    Madison Co. offers level float and liquid level switches. Switch configurations include: conductivity, hydrostatic pressure, radar level, ultrasonic, level switch & temperature combinations, continuous level float, and custom configured multi-level float. Stainless steel full size liquid level switches allow temperatures up to 200°C, they have float sizes ranging from 1/2" to 2" in diameter, and a maximum pressure of 500 PSIG. Applications include: wastewater, water, petrochemical, medical, appliance, food, etc.


  • ACT (Advanced Control Technology)

    Advanced Control Technology offers horizontally and vertically mounted liquid level float switches. Product options include: high buoyancy, universal, miniature (modified stem), micro-miniature, custom assemblies, continuous output, universal mountings, removable tank exterior, miniature side entry float, etc. Continuous output liquid level sensors feature a 1/2" accuracy, they can be customized to customer applications, and come complete in a plug in package. Optional features include: up to 33-240 ohms, a 4-20 mA output, accuracy up to 1/4", and up to 1-10 volts.

  • Harwil

    Harwil Corp. offers L Series level switches for the truck/automobile, fluid handling, water treatment, carpet cleaning machinery, scrubber, and chiller industries. Switches have electrical ratings up to 250 VAC, temperature ratings up to 250°F, and pressure ratings up to 300 PSI. Wetted switch materials include: Fortron, Noryl, Hastelloy C-276, 316 stainless steel, red brass, etc.

  • Innovative Solutions, LLC

    Innovative Solutions LLC offers ultrasonic liquid level switches, liquid level interface switches, and float liquid level switches. U002/U003 Ultrasonic level switches have maximum pressures of 1500 psig, process temperatures ranging from -40 to +185°F, and input voltage ranging from 10-35 VDC. L170 Series compact/alloy level switches have pressure ranges from 150 to 1000 PSIG, maximum currents to 120 VAC, and can withstand temperatures to 500°F. L500S Series adjustable suspended level switches have maximum pressures of 150 PSIG and temperatures up to +300°F. Switches are made from brass, Buna-N, PVC, stainless steel, PVC, and Teflon materials.

  • BlueLevel Technologies, Inc.

    BlueLevel Technologies, Inc. offers bin level switches in the following configurations: Model VHS "Fork" style vibrating, Model VHS vibrating element "Rod", high temperature bin level indicators, Model CPH capacitive proximity, and Model RH/RHX rotary bin level indicators. Model RH/RHX rotary bin level indicators can detect the absence and presence of bulk solids ranging in density from 5 to over 100 lbs per cubic ft. Other features include: high intensity LED's, temperature allowances up to 750°F, a four shielded bearing design, and a heavy-duty synchronous drive motor.

  • Fluid Components International

    Fluid Components International offers level switches and fluid level switches for automation and industrial process management. Switches have applications for: premium level monitoring, general purpose monitoring, flow monitoring, fast response monitoring, multipoint level monitoring, ultra-fast response level monitoring, etc. FLT93S FLexSwitch level switches have operating temperatures ranging from -100°F to +850°F, operating pressures to 3500 PSIG, and an accuracy rating of ±0.25".

  • Chicago Sensor

    Chicago Sensor manufactures, designs, and distributes liquid level switches and sensors for use in a variety of OEM applications. Sensors utilize ultrasonic, conductivity, and magnetic reed technologies. They have certifications from UL, CSA, NSF, and ISO. Optional custom designs, a wide range of sizes, and a wide range of mount configurations are available. Sensors have applications for: high pressure conditions, corrosive conditions, harsh environments, tight spaces, fluid level controls, etc.

  • Innovative Components

    Innovative Components offers standard and custom liquid level switches. Standard switches come in three categories: vertical, horizontal, and special. Vertical and Horizontal standard switches come with an SPDT or SPST reed switch, and 24" of 20 awg PVC lead wires. Special standard switches come in thermal well, external bottle, temperature/slurry, bilge, and temperature/level configurations. Custom switches come in the following materials: Teflon, PVC, polypropylene, Buna, brass, and stainless steel. They are available in multiple sizes and configurations.

  • BinMaster

    BinMaster offers BM-T tilt switches. BM-T switches alert the user when the device tilts at least 15°, making them useful for detecting high levels of heavy/large materials in silos, tanks, and bins. In addition, these switches can be used for the detection of cogs or plugs in chutes during process operations.

  • Monitor Technologies, LLC

    Monitor Technologies, LLC offers point level switches in the following configurations: pressure sensitive, proximity, tilt, vibratory, RF capacitance, rotary paddle, etc. KA/KAX rotary paddle bin level indicators feature a maximum temperature rating of 750°F, a built-in slip clutch, a twist on/off cover, hazardous location approvals, a sealed three bearing design, etc. Applications include: hoppers, silos, bins, and other vessels for storing bulk solids.

  • BinGo Sensor

    Bingo Sensor is a supplier of level switches, including cable float, side mounted float (standard thread or standard flange), high temperature flange side mounted, flange top mounted, square flange side mounted, Z type side mounted, and many other designs.