IFM offers both pressure switches and transmitters. Their pressure switches are available in compact, digital, and dial types. Outputs can range from NO / NC type to a 4 to 20 mA. They offer a variety of mounting solutions. Transmitters offer a 4 to 20 mA or 0 to 10 V output. IFM also offers a submersible pressure transmitter for applications that require no holes to be drilled in the tank. Available to Kansas, Nebraska and western Iowa customers only.
Aventics offers their series PE5 pressure / vacuum switches. Pressure ranges from full vacuum to 145 PSI are available. Each units include 2 output for versatility. Some units include a user selectable analog output (0 to 10V or 4 to 20mA)
SUNX offers a broad range of pressure / vacuum switches. They are available with monochrome and color displays. The units offer NO / NC outputs along with analog outputs.