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Level Switch

Thomas Products provides the highest quality level switches the industry has to offer and all of our level switches are manufactured in house and stocked for immediate delivery, however if you are looking for an item and you don't see it please either chat with us or visit our contacts page here and we'll be happy to help!

Whether you are in the need for a multi-level indicator, side mounted, single level, or a bottom mounted level switch, we have the part for you. We can manufacture simple liquid level float switch as well as continuous output level transmitters and everything in between, no job is too big for Thomas Products!

Our level switches can be found in a variety of materials such metals like bronze, brass, SST, or monel; and plastics like PVC, polypropylene, or polysulfone. We have custom manufactured units in other materials like titanium and Teflon as well, if you need something custom, we can help!

Take a look below at all of our level switches, or you can start choosing specifications on the left; if you don't see the part you need, or would rather have us do the heavy lifting, let us know! We're happy to help! Chat with us, or visit our contacts page to get in touch with us!


Please choose the type of switch you are looking for below.


$192.00
Model 4100, Liquid Level Switch, 1" MNPT External Tank Mounting, Brass, SPDT 20VA Pilot Duty, -30°F to 300°F
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$278.00
Model 4100, Liquid Level Switch, 1" MNPT External Tank Mounting, SST, SPDT 20VA Pilot Duty, -30°F to 300°F
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$207.00
Model 4100, Liquid Level Switch, 1" MNPT External Tank Mounting, Brass, SPDT 20VA Pilot Duty, -14.7 to 1000 PSIG, -30°F to 300°F
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$278.00
Model 4100, Liquid Level Switch, 1" MNPT External Tank Mounting, SST, SPDT 20VA Pilot Duty, -14.7 to 1000 PSIG, -30°F to 300°F
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$20.00
Model 4400, Liquid Level Switch, 1/2" MNPT External Tank Mounting, Polysulfone, SPST 20VA Pilot Duty, -14.7 to 150 PSIG, -40°F to 225°F
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$22.00
Model 4400, Liquid Level Switch, 1/2"-13 Bulkhead With Nut - Internal Tank Mounting (gaskets sold separately), Polysulfone, SPST 20VA Pilot Duty, -14.7 to 150 PSIG, -40°F to 225°F
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$20.00
Model 4400, Liquid Level Switch, 1/2" MNPT External Tank Mounting, Polypropylene, SPST 20VA Pilot Duty, -14.7 to 100 PSIG, -40°F to 225°F
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$30.00
Model 4200, Liquid Level Switch, 1/8" MNPT Internal Tank Mounting, Polysulfone, SPST 20VA Pilot Duty
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$32.00
Model 4200, Liquid Level Switch, 3/8"-16 Bulkhead With Nut - Internal Tank Mounting (gaskets sold separately), Polysulfone, SPST 20VA Pilot Duty
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$30.00
Model 4200, Liquid Level Switch, 1/8" MNPT Internal Tank Mounting, Brass, SPST 20VA Pilot Duty
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$59.00
Model 4200, Liquid Level Switch, 1/8" MNPT Internal Tank Mounting, SST, SPST 20VA Pilot Duty, -14.7 to 150 PSIG
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$69.00
Model 4200, Liquid Level Switch, 1/8" MNPT Internal Tank Mounting, SST, SPST 20VA Pilot Duty, -14.7 to 400 PSI
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