[W-MBUS] Can I buy MBUS1 or MBUS2 modules? No, these are obsolete and replaced by MBUS3. Last Update: August 8, 2017 December 13, 2016 2494 Wireless M-Bus Q&A Related Knowledge Base Posts -[W-MBUS] “I know by using Zigbee module that even if they use an “”open protocol”” it doesn’t mean you can be fully compatible with other manufacturers (aka ZB home profile, …). Is it still the same with Wireless M-BUS? Is it all about Application layer? “[W-MBUS] I need to realise a smart metering network using 169 MHz and WMbus standard. What option do you have?[W-MBUS] Is the firmware included in module? Are there are any additional cost regarding firmware?