Includes reverse polarity protection and optocoupler isolation to prevent electrical interference. Skycraft Surplus Key Programming Modes

Relay turns ON for time OP after a trigger signal; subsequent triggers during timing are ignored.

Similar to P4, but starts with an OFF period ( CL ) followed by ON ( OP ).

This is the most critical part of the . To unlock the hidden parameter menu:

Short press the STOP button to force the relay OFF or resume operation.