WM Systems - Innovation in Smart IoT SystemsNarrow Band Smart IoT Transmitter - WM Systems LLC - Innovation in Smart IoT systems : WM Systems LLC – Innovation in Smart IoT systems

Cost-effective wireless impulse counter, consumption signal metering transmitter for industrial companies and utility providers.

It receives and counts incoming impulse signals of 1-2 connected meters (water or gas), measurement devices – through its inputs.

The small communicator provides wireless data transmission to the data center through Narrow-Band mobile network.

Suitable for answering Modbus TCP request of a Scada system, to which it responds by transmitting meter count data towards the centre.

It is also useful for remote monitoring of the external meter’s current status.

Easy to configure (remote, local by a free tool), easy to use. The communicator can be accessed remotely.

Data evaluation can be performed on server side in the client’s software (Cloud).



  • Utility providers
  • Smart IoT companies
  • Smart metering
  • Industrial measurement
  • Residential communities


  • Narrow-band network (Telit® modem)



  • PCB version with fixation lags (for easy fit or mount by screws)
  • 2pcs isolated inputs (contact DRY or voltage WET) for impulse signal reception (range: 0-500Hz, by optional: 0-1000Hz)
  • Power/battery connector (8-24VDC, 300mA – terminal block)
  • micro-USB port (configuration, firmware refresh)
  • SMA-M antenna connector (50 Ohm)
  • Push insert-SIM card bay


Software features

  • Impulse signal counting and transmission (water- and gas meters)
  • Life signals
  • Optional Modbus TCP communication between the meter and the Scada system



  • EasyTerm® parameter configuration software (Windows® is supported)
    • Configuration (serial port, TCP/IP)
    • Firmware refresh/configuration download/upload (serial port, Ftp)
    • Remote access (TCP)
  • Operation status LEDs



  • Watchdog (monitoring and auto recovery)
  • Configuration settings locally stored
  • Wire cut, short circuit and sabotage detection



  • Narrow Band Smart IoT Transmitter (PCB) with Impulse firmware®
  • 5V micro-USB cable (for configuration, updates) – optional
  • Narrow-band, gained SMA antenna (optional)
  • EasyTerm® configuration software

Technical details


Pay attention to the following products

EasyTerm configuration tool

EasyTerm configuration tool for the Safety Alarm & Fire Alarm transmitting modem and the Smart IO Gateway metering modem


Wireless Safety Transmitter

Wireless safety transmitter with 2G / 3G / 4G communication for safety dispatch centers with gate control feature


Wireless Fire Alarm Transmitter

Wireless fire alarm signal transmitter and system monitoring with 2G / 3G / 4G communication for fire alarm dispatchers & centers


Narrow Band Smart IoT Gateway

Easy to configure, 8 input impulse signal counter and voltage/contact signal receiver with Narrow Band data transmission for metering purposes


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