If you're looking for a reliable air pressure switch to use with your electric air compressor, the N003990 model is the perfect choice.

Installing and using the N003990 Air Pressure Switch for Electric Air Compressors is a straightforward process, and you don't need any special tools or skills. Here are the general steps to follow:
1. Turn off the air compressor and unplug it from the power source.
2. Locate the old pressure switch on your air compressor and disconnect the wires from it.
3. Remove the old pressure switch from the compressor and replace it with the N003990 switch.
4. Connect the wires to the appropriate terminals on the N003990 switch according to the instructions provided.
5. Adjust the pressure settings on the N003990 switch to match the desired pressure range for your air compressor.
6. Turn on the air compressor and test the switch to ensure it's working correctly.