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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-"
Product does what it says but is not robust. I installed it and used it at my video door-bell - electric lock system for one month. One day we experienced electric power outages in my area. This device was the only one that was damaged. I don't say that a product must be designed to withstand any disturbance at AC input, but the fact that the outages where not that severe and this was the only device affected shows that it has not even the slightest protection at input. Consider using it with some UPS or some other protection.
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