PRESAIR
Vacuum Switches
Presair mechanical vacuum switches make electrical contact when a certain set vacuum has been reached on its input. Our vacuum switches are available in multiple styles including adjustable vacuum switches or fixed set point vacuum.
Each switch is designed and manufactured to exacting standards to meet the needs of original equipment manufacturers and instrument makers for low cost, stable switches and good repeat accuracy.
Our vacuum switches have a range of 0.25 inches of water to 300 inches of water.
Presair offers:
- Adjustable Vacuum Monitoring System
- Tinytrol Miniature, Factory Set Vacuum Switches
- Adjustable Vacuum Switches
- Sensitive Differential Vacuum Switches
- Printed Circuit Board Mount Vacuum Switches
Gold contacts, multiple mounting configurations and other custom options available.
Learn more about each of these different options below.
CUSTOM OPTIONS
Wide variety of options available to meet original equipment manufacturers product requirements.
HIGH QUALITY
Presair switches are 100% testing before leaving our facilities.P
SAFE & ECONOMICAL
Costs are comparable or lower than conventional controls meeting the needs of original equipment manufacturers.
MADE IN U.S.A.
Products are designed & manufactured in Eau Claire, Wisconsin, USA.
Talk to a product specialist today!
Vacuum Monitoring
Welcome to the perfect notification product for monitoring vacuum! This simple external solution features a light (optional audible alarm) that’s designed to grab the attention of qualified personnel anytime vacuum is rising too high or falling too low in a system. Prevent and fix issues before they cause significant downtime!
Tinytrol Factory Set Vacuum Switches
Tinytrol vacuum switches provide versatile and convenient sensing. Their miniature size and variety of connection styles for simple implementation into any system. These switches allow for simple electrical on/off control over vacuum.
Adjustable Switches
Presair is a leading manufacturer of adjustable vacuum switches. Vacuum switches are designed and manufactured to exacting standards to meet the needs of original equipment manufacturers and instrument makers for low cost, stable switches and good repeat accuracy.

Sensitive Differential Vacuum Switches
Sensitive differential switches are the perfect for those needing a sensitive, adjustable switch at an affordable price. They can be setup to sense either pressure, vacuum, or the difference between two sources of pressure or vacuum.
PCB Mount Vacuum Switches
Miniature single pole and double pole switches used as vacuum switches where moderate accuracy is sufficient. Vacuum ranges: 6 IN.W.G. to 200 W.G. Vacuum setting marked on switch in inches water gauge. Actuation point is customer specified and set at the Presair factory. Some models allow field adjustment.