“This product is exceptionally good value: eight mains rated relays would usually cost much more just as components. Unfortunately, the documentation is woefully bad and I had to reverse-engineer the circuit! The manual was hard to find as a search on the part number on the Whadda/Velleman site yielded nothing. I had to retrieve the packaging from the bin, scan the QR code on my phone and type the resulting URL into my laptop. The manual has a different part number than is printed on the product and has no schematic or wiring diagram. The crucial section 7 is an incomprehensible word-soup from which I challenge anyone to extract any useful meaning!”
