A pressure switch helps to measure the pressure inside your air tank, and then is used to shut off your compressor when your tank reaches a set PSI.  The pressure switch will also help your compressor maintain the proper pressure level as you work. The switch turns on your compressor when tank pressure levels drop, and more air is needed.  This makes the pressure switch a part that gets used often, so it may wear down faster than other components. You’ll want to keep it properly maintained, and repair or replace it when any problems arise.  Air Compressors Plus stocks a variety of pressure switches so when the time comes to replace your switch, give us a call or stop by.