Dew Point Meter
Dew Point Meter


The BP25 can accurately locate potential drops below dew point on material surfaces and positions where mould can form or insulation is poor.

Using the BP25, surface temperatures as well as current room climate values can be determined in one measuring process.

The pyrometer combines these values to calculate the dew point threshold at the measuring point and gives an acoustic and visual alarm in the event of a risk of condensation due to a drop below dew point.

An indicator light with traffic-light colours shows whether the surface temperature at the measured point is in a safe, green range. At borderline temperatures, the colour changes to orange and when the temperature drops below dew point, a red LED with an additional acoustic alarm emits a warning.


  •  One device for measuring surface temperature, air temperature, humidity and dew point      temperature.
  •  Acoustic and visual dew point alarm.
  •  Measuring spot diameter display due to dual laser technology.
  •  Colour LED and bar graph indicator display of condensation risk.
  •  Backlit display.
  •  Automatic switch-off.
Technical Parameters:
Optical resolution (D:S) 20:1
Temperature Measuring range -50 °C bis 260 °C
Accuracy < 20 °C: ±3.5 °C; ≥ 20 °C: 1 % ± 1.5 °C
Humidity Measuring range 0 to 100 % RH
Accuracy ±3.5 % (20 to 80 % RH)
Dew point temperature Measuring range -30 to 100 °C
Accuracy ±2,0 %
Reaction time < 150 ms
Spectral sensitivity 8 - 14 μm
Emissivity 0.95
Functions Acoustic and visual dew point alarm, bar graph indicator display of condensation risk, dual laser pointer, temperature units °C and °F,
Power supply 9 V battery
Dimensions 82 x 58 x 168 mm
Weight 163 g
Scope of supply Measuring device, protective bag, batteries,operating manual


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