The second type of control relies on limit switches with secondary timing. This ensures that the gate is always cycled between two known points, closed and open. Unfortunately, this requires the limit switches to be in good working order. A failure to operate correctly will usually be the result of a failed or miss-aligned limit switch. Bigger is not always better.
Larger switches tend to have silver contacts.
These are not the best for low currents, gold contacts should be chosen. Outside New Zealand . . GST is only charged on sales within New Zealand . The DGC-MK2 is not supplied as a bare PCB or kit.