For selecting a pressure sender, what information should I have before contacting a distributor or sales rep?

What pressure range do you need (eg: 80PSI)

Will the sender be operating one gauge or two.

If you wish to try to match an existing gauge, what is the resistance range (ohms) (eg: 240-33.5) (see question on mixing Stewart Warner and non-Stewart Warner instruments and senders). Your distributor or sales rep can assist you with this if you have the gauge brand and part number

Pipe thread size you will need (Stewart Warner pressure senders come with 1/8" standard pipe thread. 1/4" pipe thread adapters are available.)

Do you have a preference for the connection (i.e. stud terminal, Packard™ Connector, etc)

Operating voltage the sender will be running on (eg: 12V) (voltage adapters are available for circuits running up to 36V)

You should also provide information on the pressure gauge you will need by following the guidelines in "Selecting a pressure gauge".