Citra Wahana Sekar Buana


Humidity Instruments


Relative Humidity


Measurement range 0 ... 100 %RH
Accuracy (incl. non-linearity, hysteresis, and repeatability):
    temperature range 0 °C ... +40 °C
    0 ... 90 %RH ± 1.5 %RH
    90 ... 100 %RH ± 2.5 %RH
    temperature range -40 °C...0 °C and +40 °C ... +80 °C
    0 ... 90 %RH ± 3.0 %RH
    90 ... 100 %RH ± 4.0 %RH
Factory calibration uncertainty at +20°C (68°F)
0 ... 90 %RH ± 1.1 %RH
90 ... 100 %RH ± 1.8 %RH
Humidity sensor HUMICAP® 180R
Stability ± 2 %RH over 2 years



Measurement range -40 °C ... +80 °C
Accuracy over temperature range:
    0 ... +40 °C ± 0.2 °C
    -40 ... 0 °C, +40 ... +80 °C ± 0.4 °C
Temperature Sensor Pt1000 RTD 1/3 Class B IEC 751



Operating temperature range for probe -40 °C ... +80 °C
Probe weight with standard cable 31 g
Probe housing material stainless steel
Probe filter and sensor protection membrane filter with chrome
coated ABS plastic
Cable material Wire PVC / jacket PU
Cable connector TRRS male 3.5 mm
Probe housing classification IP65
Borehole diameter needed 16 mm
Measurement depth with standard accessories
min. 30 mm, max. 90 mm


HM40 Indicator

Operation temperature range for indicator -10 ... +60 °C
Storage temperature range -30 ... +70 °C
    Indicator with adapter 240 g
    SHM40 case with standard content 3.7 kg
Indicator materials PC/ABS blend, acrylic display lens
Indicator adapter materials Nickel plated brass and plastic
Indicator housing classification IP54
Mechanical drop endurance 1.0 m without the probe
Power-up time < 3 s
Alkaline batteries 2 x AA sized, 1.5V (LR6)
Operation time (Alkaline batteries) typical 100 hours
(without backlight)
Calculated variables Td, Tw, a, x, h
Menu languages English, German, French, Finnish, Spanish, Swedish, Chinese (simplified), Russian, Japanese
Display LCD (140 x 160 pixels)
compatibility (EMC)
European Union directive EN61326-1 for portable equipment


Accessories and Spare Parts

HM40 indicator with adapter and cable probe HM40S
RH&T probe with cable HMP40S
HM40 indicator with adapter HM40SINDI
Quick connector adapter HM40SADAPTER
Cable for RH&T probe HMP40SCABLE
Long cable (2.7 m) for RH&T probe HMP40SCABLE2
Plastic tube set (12 pcs) 19266HM
Rubber plugs (12 pcs) 233976
Weather-proof carrying case with SHM40 filling 233815
Protective cover with lid (3 pcs) 19268HM
USB recharger for HM40 indicator batteries 229249SP
Plastic grid with membrane filter for HMP40S probe DRW010525SP
Plastic flange set (12 pcs) 26529HM
Long rubber plug for wet concrete (12 pcs) 26530HM

The Vaisala HUMICAP® Structural Humidity Measurement Kit SHM40 offers an easy and reliable solution for humidity measurements in concrete and other structures using the borehole method. In this method, a humidity probe is left in the borehole until the humidity in the hole has reached an equilibrium state and the stabilized values can be read.

The interchangeable HMP40S probes connect easily to the HM40 indicator with a snap-on connector enabling convenient use of multiple probes with one indicator. The measurement data can be displayed for example in a stabilization graph. The rugged HMP40S probes are IP65 classified and conform to the ASTM-standard F2170.

The standard contents of the SHM40 are:

  • HM40 indicator with adapter
  • HMP40S RH&T probe with a cable
  • Calibration certificate (ISO9001 compliant, NIST traceable)
  • 12 pcs plastic tubes (19266HM)
  • 12 pcs rubber plugs (233976)
  • 3 pcs protective covers with lid (19268HM)
  • Weather-proof carrying case with a shoulder strap

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