Works as expected. Good soldering quality and components. Provided library is very good for onboard EEPROM. But it do not manage the included alarm. So I replace the included library with RTCLib, and it works very well. Now I'm able to put Arduino into a sleep and it is awaken by the alarm. Vendor is quick to reply and very helpful.
At first the board didn't worked using external power supply. I sent photos to vendor and he quickly (1 hour) found the flaw : Bad soldering on a diode. I added a little solder and it now works as expected. Easy to use : ability to add nano shield and standard shield is a must have ! However the USB connection is slower than original Arduino.
Easy to connect, setup libraries and example code to follow. I tried various 4-20mA sensors, but this is the only sensor I will recommend for anything but hobby use. This is a professional quality product, well designed and easy to implement.
This 4-20mA ADC receiver is an excellent product, I use these in my PLCs; an Arduino based SCADA system. The PLCs read pressures and flows which control pumps and valves to supply water or to move sewage in the towns we serve.
I could not have been happier with the 4-10mA receivers. They work well and are accurate down to about 2%.
Shipping time is long and expansive coming from Brazil, South America, but well worth it.
This is a super value for a well make, quality component.
THANK YOU CORREIOS!