features · temperature measurement for air ducts. · simple and secure installation · wide range of temperature probes · 0…10v or 4…20ma measuring signals · compact size and modern design applications · on return air ducts to measure heating/cooling return air · on supply air ducts to measure heating/cooling supply air · in heat exchangers and air handling units to control heating/cooling coils for temperature and humidity control · as frost protection sensor temperature tansmitter the transmitter measures the temperature by the use of a pt1000 sensing element. the transmitter analog output may be be 0-10v or 4-20ma. and the transmitter include a noise filter.the power suply is large range vdc18v----vdc30v.standard temperature measurment range is -30…70 °c.