"I am new to OpenBeken and trying to get a D52-2066 DIN-rail-mount energy meter working. In the Smart Life app it shows up as a 'breaker' and it uses the bk7231n chip..."
This comprehensive guide will answer your questions about where to find the manual and will also cover everything else you need to know to get the most out of this capable device. ---- D52-2066 Manual Pdf