Modular Room Transmitter for Temperature, Humidity and CO₂

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  • Temperature
  • Humidity
  • CO₂


The room wireless transmitter EE245 is based on the IEEE 802.15.4 protocol with a transmission frequency of 2.4 GHz and measures up to three physical quantities: relative humidity, temperature and CO₂.

  • EE245 modular room transmitter for temperature, humidity and CO₂

    The EE245 can be powered either by batteries or by an external power supply. Depending on the physical quantities measured as well as on the sampling and transmission rate, the batteries may last up to 3 years.

    Key Features

    • Pluggable RH and CO₂ modules
    • Dual wavelength CO₂ operation principle
    • Choice of 1.5 V AA aklaline batteries or external power supply
    • Battery life up to 3 years
    • Optional display

    Technical data

    Humidity, Temperature, CO₂
    Transmission frequency
    2.4 GHz
    Transmission Protocol
    IEE 802.15.4
    Transmission power
    Radio range
    1000m in open field

    Related products



    Downloads EE245


    Transmitter with "two-wires" technology receive the power from the process, and the signal is carry on return wire (closed current loop). With technology "three-wires" the power supply is separate from current output: 2 wires are the power supply and third carry the signal.

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