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The unit actually functions very well - once you figure out HOW to use it, and that was done by trial and error! The so-called instructions are not really worth the coated paper it is printed on! However, once you figure it out, it's actually a good-quality unit! So, here are some lessons learned on the usage... Scenario - You have a Normally-Open circuit (e.g., Fail-secure electric door jamb). 100 - 240V AC in is as marked, so the instructions are at least good for this. If you use a Normally-Open circuit to trigger the unit, the wires in should go to the terminals marked "+NO" and "-Common" (Use +NC if it is a normally closed circuit). The 12-volt triggered solenoid latch should be wired to "Push" and "Ground" If you have a +12V trigger to trigger the solenoid, you should use the terminals marked "Control+" and "Control-"
initially worked well and easy to wire up for someone that is technically minded Did exactly what i needed to for opening a mag lock controlled wing gate with hydraulic ram I went away for 2 weeks, worked once on my return then died I have returned for refund and ordered the same again as a straight swap will save time - lets see how the next one fares