Review on SainSmart 101 70 102 8 Channel Relay Module by Candace Young
Good value for money but poor production
The good news is that you can download the documentation (diagram and specs) from the manufacturer's website. You can easily isolate the coil power from the low level signal power and the board features opto isolators on each input. The downside is that in production, the solder joints on the back of the board look cold (they are matte rather than shiny) and there is uncleaned flux on the front of the board. It works perfectly, so I'm deducting a star from the rating.
- Fingers crossed
- Long delivery time
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