wMBUS NB-IoT Gateway V2 - Datasheet

Technical characteristics
DescriptionLobaro Wireless M-Bus NB-IoT Gateway V2 
Cellular NB-IoT / LTE Cat. M1 Modem
LTE ChipsetNordic nRF9160
  • Internal Monopole
  • On Request: External Antenna (SMA female)
Supported LTE Band
  • Standard: B8, B20 (791 MHz - 969 MHz)
  • Other Bands on request
SIM card slot4FF (Nano SIM)
Supported LTE modes
  • Narrowband IoT (NB-IoT)
  • LTE Cat-M1 
Data Upload
  • Secure CoAP over DTLS (via Lobaro IoT Platform)
  • Plain UDP (any Platform)
Firmware Features
  • Certificate based authentication and encryption
  • Remote configuration (via Lobaro IoT Platform)
  • Remote firmware update (via Lobaro IoT Platform)
Wireless M-Bus communication
  • Internal Monopole
  • On Request: External Antenna (SMA female)
Frequencies868.3 MHz, 868.95 MHz
Supported wireless M-Bus modes

Unidirectional 868 MHz modes according to EN13757-4:

  • C1 / T1 (combined) 
  • S1
Telegram storage size250 telegrams á 255 Byte (64 KByte)
Maximum white list sizeminimum 150 different meters (2 KByte config size)
White list filters
  • Meter ID
  • Manufacturer code (M-Field)
  • Meter type (e.g. only water meters) 
Supported meters per gateway
  • Standard: 250
  • On request: up to 1.000
EncryptionAES128 (Mode 5 + Mode 7)
RF reception rangeup to 100m under ideal conditions
Firmware features
  • Configurable wireless M-Bus collection intervals
  • Automated upload of all received telegrams
Additional I/O
Local configuration portPC based initial configuration via USB adapter
LEDRGB Led to signal different operating modes
Power Supply
Supply Voltage ConnectionJST-XH connector
Nominal Supply Voltage3.6V
Supply Voltage Range3.3V - 5V
Std. Power supplyLobaro ER34615M 3.6V primary battery (D-cell)
Current consumption @3.6V
Normal / Idle≤ 3 mA
Wireless M-BUS RX≤14 mA
LTE (NB-IoT, LTE Cat-M1) TX≤ 500 mA
Sleep with RTC running≤10 µA
Mechanical dimensions
Size130 mm x 82 mm x 55 mm (incl. DAE)
Weight220g (excl. Battery) + Battery: ca. 114g
Housing MaterialIndustrial polycarbonate
RatingIP67 including pressure compensating element
Environmental Requirements
Operating temperature range-20°C to +55°C
Max. Installation height2m


  • EN 300 220-1 (RF)
  • EN 300 220-2 (RF)
  • EN 301 908-1 (RF)
  • EN 301 908-13 (RF)
  • EN 301 489-3 & EN 301 489-52 (EMC)
  • EN 62368-1 (Electrical Safety)
  • EN 62311:2008 (Electrical Safety)
  • EN 50581 (RoHS)