This option may be required when wanting to use different variants of controllers that are mainly used for blinds, garage doors, gates etc..
Some controllers can vary as they may require a short pulse to fully open or close, this is where pulse mode will be required.
In this mode the relay closes the contacts to provide a pulse that matches the length of the time you have set in the app (0.5-6 seconds), this is basically to simulate a button press and release action
The relay's internal contacts will disengage after pressing Open or Close, but the app will still show the sate you had selected after sending a pulse to the controller/connected device
Pulse mode varies from case to case, every manufacturer has got their implementation, so the best thing is to check controller details before connecting with our relay.
If you are unsure on how to wire your controller, please contact us via a support ticket for assistance. We will require the manufactures wiring diagram in PDF format in order to assist