Tinytrol Miniature Pressure Switches

Tinytrol Miniature Pressure Switches are factory set from 0.25 Psi to 65 Psi. Available in a variety of pressure connections, mounting styles & electrical ratings.

Tinytrol miniature pressure switches are designed & manufactured to exacting standards to meet the needs of original equipment manufacturers & instrument makers for low cost, stable switches & good repeat accuracy. 

custom options

Wide variety of options available to meet original equipment manufacturers product requirements.

high quality

Highly stable with good repeat accuracy. All switches are 100% tested at high & low settings, & at proof pressure.

safe & economical

Remote operation with complete electrical isolation. UL Recognized. Costs less than conventional controls

made in u.s.a.

Presair switches are designed & manufactured in Eau Claire, Wisconsin, U.S.A.

Presair Tinytrol miniature pressure switches make electrical contact when a certain set pressure has been reached on its input.

Their miniature size & variety of connection styles for simple implementation into any system. These switches allow for simple electrical on/off control over pressure. As pressure rises or falls, one contact opens as the other closes. This provides a perfect solution for monitoring, controlling & notifying. Tinytrol Miniature Pressure Switches are preset at the factory to actuate at your specific requirements.

  • Variety of mounting options available
  • Factory Set Pressure Range 0.25 inches of water to 65 PSIG
  • Proof Pressure Tested up to 120 PSIG
  • Ratings up to 25A @ 250VAC; Gold Contacts Available
  • SPDT or DPDT Models Available
  • UL/cUL Recognized
  • Acetal body
  • Multiple diaphragm materials available to meet application requirements.

Mounting Options & Air Connections

Presair switches have a variety of mounting options & air connections available to meet the needs of original equipment manufactures.

Click on one of our readily available solutions below, or send a request for a custom option to

1/8 NPT Only
Radial Mount with 1/8″ O.D. Side Air Spout
1/2″ Mounting Threads with Flat, 1/8″ O.D. Center Air Spout
9/16″-18 UNF Threaded Mount with 1/8″ O.D. Center Air Spout

Common Applications

Presair’s Tinytrol miniature pressure switches are commonly found in pool & spa, medical & industrial applications.

Pool & Spa

Cross Reference

We are certain of our position at the top so we’re comparing our product with other top products in the marketplace today.

Find further details by visiting  this link.



Tinytrol Series


6773 Series


3000 Series


PSW27/29 Series



A7 Series

Fixed Pressure Range 0.25 to 65 PSI

Max. Operating Pressure 120 PSI



Rated up to 25A @ 250VAC

Multiple Mounting Options & Air Connections

UL / cUL Recognized

Made in U.S.A.

Frequently Asked Questions


Are the Tinytrol Pressure Switches adjustable?

No. All Tinytrol Pressure Switches are factory set between 0.25 to 65 PSI. You can view our adjustable pressure switches here.

My application will expose the switch to hazardous chemicals and/or gases. How will this affect the switch’s performance?

We offer a variety of diaphragm material options to meet different application needs. 

Here’s a guide to the different options available.

My application has a small or large amount of current. What are the pressure switch ratings?

We offer a variety of micro switch options to meet application requirements up to 25 Amps @ 240VAC. Learn more   here!

What do you mean by PSI rising / falling?

Pressure switches are measured by inches of water, or PSI. Once the switch rises or falls the contacts will open and close based on the hysteresis, or deadband.

Read a more  detailed explanation here.

What’s the difference between a pressure and vacuum switch?

Pressure switches push against the diaphragm & plunger inside the switch versus a vacuum switch pulls the diaphragm away from the plunger inside the switch. Another way to think of vacuum switches is a negative pressure switch.  Here’s an illustration to help!

Request A Quote

Complete the form below with your application information, and a product specialist with follow up with you in 1-2 business days.

    Your Name (required)

    Company Name (required)

    Telephone Number (required)

    Your Email (required)

    Sign up to receive email newsletters and marketing materials.


    Your Message

    Call Now