Description
Inputs
Wireless interfaces:
- Wireless M-BUS S1 and C1/T1 (868 MHz)
- Compatible with EN 13757-4
- Compatible with OMS 4 counters
- Sensus RF Bubble Up
- Müller radio (ME protocol, walk-by)
- For up to 65,000 meters
Wired interfaces:
- IP68 aviation-style circular connector (standard)
- Alternative: Cable bushing
- Wired M-BUS Master
- M-Bus voltage (without load): 36V
- M-Bus quiescent current: ≤ 37.5 mA, 25 standard loads (*)
- Overcurrent threshold: 50 mA
- Automatic counter scan
- Secondary and primary addressing
- 2400 / 9600 baud
- 2-pin plug + 22 cm cable (M+,M-)
- 1-Wire: Up to 20 temperature sensors (type: DS18B20)
- 3-pin connector + 22 cm cable (3V, GND, DQ)
Outputs
- Mobile radio (NB-IoT, LTE-M)
- CBOR / JSON via MQTT (standard)
- CBOR via CoAP (Lobaro Platform)
- DTLS / TLS encryption
- LwM2M (planned)
- LoRaWAN 1.0.2 EU868
- DECT NR+ (1.9 GHz band pre-installation)
Power supply variants
- 38 Ah lithium battery (standard)
- Battery life 15+ years possible (submetering use case)
- 9V to 36V DC (230V plug-in power supply)
- 230V AC (WAGO terminal)
- Solar cell (integrated in housing cover) + backup battery (3.8 Ah)
Housing
- Size: 151 x 125 x 62 mm
- IP67 (standard)
- Optional: IP68 (special seal, 1.2 m, 14 days)
- UL 94 V0 classification
- Highly flame-retardant plastic
- F1 listing according to UL 746C
- Suitable for permanent outdoor use
- Impact resistance IK 07 / IEC 62262
- Mounting for rear wall bracket or pole mount
Further features
- USB and remote configuration / firmware updates
- Flexible planning of remote meter readings via CRON parameters
- Installation and Live Mode
- Configurable white and black lists for counters
- Operation as wireless M-BUS repeater (pre-installation)
Order information

All variants of the product are also available on request with M12, M16 or M20 screw connection instead of the plug system.
Standard: Battery supply (38 Ah)
- Item: 1200436
- Power supply: 2x D-cell 3.6V, 38Ah
- Max. M-Bus meter: 10
Variant: External power supply (12V)
- Article: 1200436-2
- Power supply: 12V / 2A plug-in power supply (included)
- 12V connection on the device via DC hollow socket, IP40
- Max. M-Bus meter: 25
Variant: External power supply (230V)
- Article: 1200436-1
- Power supply: 230 VAC WAGO terminal block
- Connection in the device via PG16 cable gland
- Max. M-Bus meter: 25
Variant: Solar power supply
- Article: 1200436-3
- Power supply: 2W solar cell incl. backup battery
- Ideal for frequent readouts and outdoor installation
- Max. M-Bus meter: 10
Antenna configuration
- LTE internal, wM-BUS / LoRa internal (standard)
- LTE external, wM-BUS / LoRa internal (1x SMA): 1200436-X1
- LTE internal, wM-BUS / LoRa external (1 x SMA): 1200436-X2
- LTE external, wM-BUS / LoRa external (2 x SMA): 1200436-X3
- LTE external, wM-BUS / LoRa external (1x SMA); 1200436-X4
(*) Standard load: 1.5 mA, Ext. supply (12V, 230V): 25 M-BUS meters, Solar / battery variant: 10 M-BUS meters. On request: Solutions for up to 250 standard loads


















