IZAR RADIO EXTERN AIR (phase out in progress)



The IZAR RADIO EXTERN AIR can measure temperature and humidity. With its modern and inconspicuous design it is especially developed for in-house application. The hybrid and flexible sending scheme allows the operation with an IZAR RADIO mobile (WALK-BY or DRIVE-BY) and/or fixed network (wireless or wired) solution.


  • Simple installation
  • Modern and inconspicuous design
  • Fast set-up without software
  • Hybrid performance (for mobile reading and fixed network)
  • Battery powered with a lifetime up to 10 years
  • Wide temperature range for in-house application
  • Accurate intervals
  • Prinicple of operation

    The IZAR RADIO EXTERN AIR is an electronic unit which measure humidity and temperature. The data is sent within an adjustable sending interval to a mobile or fixed network receiver (IZAR RDC, IZAR RECEIVER BT). The telegram is according to OMS specification.

    Mobile: The IZAR@MOBILE 2 TABLET collects the data in walk-by or drive-by mode in conjunction with the IZAR RECEIVER BT. The data for the reading route is sent directly to the central PC.

    Fixed: An IZAR RDC STANDARD or IZAR RDC PREMIUM collects and saves the data to transmit these to a central FTP server cyclically. The visualization can be done with IZAR@NET or IZAR PLUS PORTAL.

  • Technical Data
    Radio protocolOMS 3.0.1; Encryption Mode 5 with AES128bit Encryption
    Versions / frequency band868.95 MHz
    Transmission power10mW
    Transmission modeT-Mode and S-Mode
    Radio rangeUp to 600m depending on ambient conditions
    Programming interfaceDIP-switches
    Approval in compliance with standardEN 60950 Information technology equipment -
    Power supply2xAA-batteries (replaceable) included
    Battery lifetimeUp to 6 years (1min sending interval)
    Up to 12 years (15min sending interval); The lifetime depends significantly on the performance of the used battery
    Sending interval1min, 5min, 10min, 15min
    AccuracyTypically ±2% in the range of 20-80%; Typically ±0.3°C in the range of -10°C up to 55°C
    * The lifetime depends significantly on the performances of the battery and is not guaranteed.
  • Ambient Conditions
    Operating temperature°C-10...+55
    Operating humidity%20...80 (non-condensing)
  • Dimensions