[W-MBUS] I have another question, there is a command to use to read the key of one of the installed slaves (set with command 0x4B)? For security reason there is no command to read the internal encryption key. Last Update: September 22, 2017 September 22, 2017 983 Wireless M-Bus Q&A Related Knowledge Base Posts -[W-MBUS] I sent a OMS telegram (A) to RC1180 and I tried to view data telegram with MBUS Demo Snifer ( MasterMBUSReveive.jpg), but I don’t found any CRC.[W-MBUS] Is there any of your MBUS radios that supports repeater functionality?[W-MBUS] Can you provide the EN13757 standard documents?