Duct moisture sensor

HYGRASGARD® duct humidity sensors reliably and precisely measure the relative humidity and/or temperature in ventilation ducts, in refrigeration, air conditioning and clean room technology and convert the measured variables into a standard signal of 0-10 V or 4...20 mA. Some models also have a potential-free changeover contact as an output - ideal for flexible switching applications in building technology.
Many device groups can also display additional parameters: relative humidity [% r. H.], absolute humidity [g/ m³], mixing ratio [g/ kg], dew point temperature [°C], enthalpy [kJ/ kg] and ambient temperature [°C].

%RH
Duct humidity and temperature sensors

HYGRASGARD® KFF-SD-U

1201-3181-0000-029
0...100 % RH
Accuracy: ± 2 %
Relative Humidity [% RH]
0 - 10 V
IP 54
$202.37
%RH
Duct humidity and temperature sensors

HYGRASGARD® KFF-SD-I

1201-3182-0000-029
0...100 % RH
Accuracy: ± 2 %
Relative humidity [% RH]
4...20 mA
IP 54
$202.37
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-SD-U

1201-3181-1000-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Humidity accuracy: ±2 % / Temp.: ±0.2 K
Temperature [°C], relative humidity [% RH]
0 - 10 V
IP 54
$207.91
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-SD-I

1201-3182-1000-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
4...20 mA
IP 54
$207.91
%RH
Duct humidity and temperature sensors

HYGRASGARD® KFF-I

1201-3112-0000-029
0...100 % RH
Accuracy: ± 2 %
relative humidity [% RH]
4...20 mA
IP 65
$217.45
%RH
Duct humidity and temperature sensors

HYGRASGARD® KFF-U

1201-3111-0000-029
0...100 % RH
Accuracy: ± 2 %
Relative Humidity [% RH]
0 - 10 V
IP 65
$217.45
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-I

1201-3112-1000-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
4...20 mA
IP 65
$223.01
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U

1201-3111-1000-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V
IP 65
$223.01
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U Pt100

1201-3111-2001-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + Pt100
IP 65
$231.73
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U NTC10K

1201-3111-2015-029
–35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + NTC10K
IP 65
$231.89
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U NTC20K

1201-3111-2016-029
–35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + NTC20K
IP 65
$231.89
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U Pt1000

1201-3111-2005-029
35...+75 / 35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + Pt1000
IP 65
$232.52
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U LM235Z

1201-3111-2021-029
35...+35 / 35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + LM235Z
IP 65
$233.01
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U Ni1000

1201-3111-2009-029
\u201335...+35 / \u201335...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + Ni1000
IP 65
$233.31
°C %RH
Duct humidity and temperature sensors

HYGRASGARD® KFTF-U NTC1.8K

1201-3111-2012-029
–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH
Temperature [°C], relative humidity [% RH]
0 - 10 V + NTC1.8K
IP 65
$233.31
°C %RH
Duct humidity sensor for mixing ratio

HYGRASGARD® KAVTF-I

1201-3162-6000-029
0...+50 / −20...+80 / −35...+75 / −35...+35 °C
0...100 % RH
Accuracy humidity: ± 2 % / temp.: ± 0,2 K
Temperature [°C], relative humidity [% RH],
dew point [°C], absolute humidity [g / m³],
mixing ratio [g / kg], enthalpy [kJ / kg]
4...20 mA
IP 65
$233.68

We also manufacture individually

Do you have special requirements? As a manufacturer with our own production facilities in Germany, we are also able to produce products outside of the standard range at any time.

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