Hydromette BL Compact TF-IR 2

The BL Compact TF-IR 2 unit has sensors for surface temperature infrared measurements as well as for measuring air temperature, and air relative humidity.

This combination of the different measuring techniques enables the TF-IR 2 unit to be used for quickly and reliably assessing dew point undershoots or determining borderline conditions on surfaces such as walls, ceilings, floors as well as on window or door lintels.

In addition to displaying the measured value, the unit creates an audible signal when a critical surface temperature is detected.

When using the unit in due time mould formation (fungal growth) may be prevented and occurrence of moistening caused by condensation may be assessed reliably.

The measuring sensor is exchangeable. Several of these sensors (plug-in TF sticks) can be put in different places (environments). Thus, successive measurements in those places can be carried out more quickly, for long adaption times can be avoided (compared to a meter with a fixed sensor).

The device is delivered fully equipped with the TF stick 16 K-25, battery and plastic box.

Measuring Range

Measuring ranges TF Stick 16 K-25

Air humidity:

0 - 100% RH

± 1,8 % RH (10 - 90 % RH) (*)


-20 - +80 °C

± 0,2 °C (10 - +60 °C) (*)

Infrared measuring ranges

-40 to +240 °C

± 0.5 °C (0 to 60 °C

at 0 to 50 °C ambienz temperature (*)

(*) = sensor accuracy


  • Handy combination meter with infrared surface temperature, air temperature, and air humidity sensors for fast single and series measurements
  • Simultaneous readout of three measured values on the 3-line LCD display, resolution: 0.1% or 0.1 °C
  • Automatic calculation of the dew point temperature and equilibrium wood moisture content (EMC)* as well as absolute air humidity readout in g/m³
  • With built-in laser pointer to indicate the position of the measuring spot and adjustable emissivity from 20 to 100%
  • In addition to displaying the measured value, the unit creates an audible signal when a critical surface temperature is detected
    • The shorter the signal intervals are, the more closely the dew point temperature is approached and the more vulnerable the area in question is for mould formation (fungal growth) or infestation
    • A continuous sound indicates the acute danger of mould formation: In cases of dew point undershots water from the air can condense in that area
  • For special requirements, other TF sticks with different filter types are optionally available
  • USB interface for transferring measured values to a PC on which the optional DIALOG BL+ software is executed (for long-term measurements or process monitoring)
  • MIN, MAX and HOLD feature for the values measured
  • Storage of the 5 most recent measured values
  • Automatic unit shutdown

  • Power supply: 9 V block battery
  • Housing dimensions: 175 [L] x 50 [W] x 30 mm [H], weight approx. 150 g
    Total length: approx. 190 mm

Suitable Accessory

 air humidity
 air temperature
 general accessory

Suitable Replacement Parts and Additional Accessory

Product Wizard


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