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Humidity Sensors FK120J (capacitive) Humidity-Temperature Sensors / TFK120J (capacitive)

Humidity-Temperature Sensors
  • for semi-industrial and industrial applications
  • operating temperature up to +60 °C
  • humidity measuring range 0...100% r.F.
  • with voltage or current outputsignal:
    0...1 V, 0...10V, 4..20 mA
  • room-version

General information


  • Humidity ± 2 %rh 40...60 %rh (otherwise 2,5 %rh)
  • Temperature ± 0,2 K with voltage
    ± 0,3 K with current

The sensors of the FK Series are very robust humidity and temperature sensors, providing highly accurate measurements across the entire measuring range. They are available in duct mount and indoor versions, and their excellent measuring characteristics have made them some of the best-selling items for semi-industrial and industrial applications.

Technical data

measuring range humidity0...100%rF
working range10...95%rF
measuring accuracy±3,5%rF
measuring mediumair, pressureless, non-corrosive/condence
temperature coefficient0,05%/K bez auf 20°C und 50%rF
adjustmentat average air pressure 430m NN
half-life period (v=2m/sec)ca 10 sec
output humidity0...20mA or 0...10V 4-wire system
or 4...20mA 2- wire system
measuring range temperature
0...+50°C, -10...90°C1), -30...60°C, 0...100°C1)
measuring accuracy±0,8 K
working range-10...+60°C
output temperature0...20mA or 0...10V 4 wire-system
or 4...20mA 2 wire-system
linearity tolerance<0,5%
operating voltage15...24V DC / 24V AC
max. load for current output500 Ohm
min. ballast resistance for voltage-output10 kOhm
internal consumption per measuring range (4-wire)15 mA
permissible ambient temperature-10...+60°C
permissible air speed15m/sec
fixingslots in housing base for wall mounting
mounting positionpreferably ventilation slots at right- angles to wind direction
quer zur Windrichtung
contactconnecting terminals in the housing
connecting terminalsfor conductor cross-sections 1.5mm2
cable connectionsimple shielding
EMC testedto EN 50 081-2, EN 50 082-2
housingimpact resistant plastic, light grey
protective systemIP20
weightca 0,2 kg

Do you have questions on this product?

Your contact person:

Badger Meter Swiss AG
Mittelholzerstrasse 8
CH-3006 Bern