Radio segment for the single-jet water meter AQUARIUS S. Usable for optimum reading with difficult access.


  • Simple installation
  • Transmission of meter data by radio to mobile or stationary receivers
  • Subassembly and programming on the water meter AQUARIUS S possible ex works
  • Retrofitable on site
  • On-site-programming using IrDa interface
  • Storage and transmission of up to three due date values
  • Battery powered with a lifetime of up to 12 years
  • Principle of operation

    The IZAR RADIO SEGMENT consists of an eletronic unit, which receives and saves meter information in the form of pulses. The radio module sends the meter number, meter reading and various items of operating information every 128 sec. The data can be received by a mobile or static receiver.

    Mobile: The IZAR MOBILE tablet collects the data in walk-by or walk-in mode in conjunction with the DIEHL BLUETOOTH RECEIVER. The data for the reading route is sent directly to the central PC.

    Static: DIEHL RECEIVER (M-Bus, LAN, WLAN, GPRS) collects and saves the data and transfers it cyclically to a control centre (e.g. IZAR CENTER, web server).

  • Technical data
    Radio protocolReal Data
    Versions / frequency band868.95 MHz or 434.475 MHz
    Transmission power7 mW
    Transmission modeUnidirectional
    Radio rangeUp to 300 m depending on ambient conditions
    Programming interfaceOptical IrDa
    Approval in compliance with standardEN 60950 Information technology equipment - Safety - Part 1: General requirements
    Power supplyLithium battery 3V
    Battery lifetimeUp to 12 years
    Data updatePermanent
    Sending interval128 s
  • Ambient conditions
    Operating temperature°C0 ... 40
    Storage temperature°C0 ... 40
    Humidity%0 ... 93
    Protection classIP 54
  • Optical interface
    Programmable valuesRadio on/off, serial number, meter index, medium, due date
    Readable valuesRemaining battery lifetime, history of 12 monthly values
  • Dimensions