LF-TD 60
air humidity, material moisture
and temperature transmitter


Industrial measuring transducer for humidity and temperature

Moisture transmitter for temperatures of up to 60°C for laboratory, climate control and drying technology, wood processing industry, food and animal feed industry, building industry, printing and paper industry, agriculture, biotechnology and pharmaceutical industry.


Article no.: 12609 LF-TD 60 air humidity, material moisture and temperature transmitter


In the manufacturing process, further processing, storage and transport, the exact determination of moisture and temperature becomes increasingly important. Only an accurate moisture monitoring can guarantee high product quality.


The LF-TD transmitters of Schaller measurement instrumentation, with its robust and easy to mount aluminium housing, are best suited for all applications in this field.


As Standard version, the moisture and temperature values are output via analogue 4-20mA power output. Alternatively, there can also be used other interfaces like for example RS232, Profinet, Modbus or USB.

The optionally available display showing the current moisture and temperature value is an add-on enlargening the application possibilities of the transmitter.


Two optional relay outputs enable the direct control of an alarm or air conditioning, for example. These switching outputs can be configurated freely (switch-points, hysteresis).


Technical drawing

Technical data

type LF-TD60
article no. 12609
Measuring range  
Relative air humidity 0 to 100 %
Temperature -20°C to +60°C
Relative air humidity 4 - 20mA
Scaling air humidity 0 to 100 %
Temperature 4 - 20mA
Scaling temperature -20°C to +60°C
burden < 500 Ohm (UB 24V)
accuracy factory calibration    
Relative air humidity 10 to 90%:  ± 2,0 %
Temperature +10 to +60°C:  ± 0,3 °C
Operating temperature  
Sensor head -20°C to +60°C
electronics -20°C to +85°C
Power supply  
Voltage 24 VDC  (12 to 29VDC)
Current consumption approx. approx. 18 mA 1)
Dimensions and other:  
Dimensions sensor head Ø 12 x 100 mm
Material sensor head: plastic
Sensor cap: plastic with filter
Material electronics housing anodised aluminium
Degree of protection electronics housing IP 54
Electric connection connection cable 1,9 m length
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