It is always exciting to get something new in the post from Itead and the current postbag includes a Sonoff 4CH PRO R2 unit. This enclosed 4-relay switching unit operates from 5-24v or mains (90-264vac) as required and has four uncommitted outputs with normally-closed and normally open options rated at 30 amps low voltage or 10 amps AC (personally I’d treat that as absolute max for non-inductive loads). The unit is controlled remotely and also has four LED indicators and buttons for local control.
You can use the built-in software which includes support for Itead’s own app (WIFI and 433Mhz remote – remote control not included in the package) and also featuring various modes and timers as well as working with Amazon Alexa, Google Assistant and Nest. Alternatively you can use open source software, I gave up on writing for Sonoffs as the developer of Tasmota has done such a good job, I could not see the point in re-inventing the wheel).
Construction looks solid and the unit is well-presented.
For those who care about such things, the units have FC, CE and ROHS. No doubt soon after Brexit there will be a British standard to add to that.
If you need more than one control in any given spot then these units look like a good plan. See also, later article in here on the R3 versions of the 4CH and 4CH Pro