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Sensors & Transmitters
   Data Acquisition
   pH and ORP
   Relative Humidity / Dewpoint
     RH Fixed Installation
     RH Portable Instruments
     Probes and OEM Modules
       DMT242 Dewpoint Transmitter
       DMT152 Dewpoint Transmitter
       DMT142 Dewpoint Transmitter
       HMP155 Humidity &Temp Probe
       HMP50 Humidity and Temp Probe
   Differential Pressure
   Carbon Dioxide
   Nitrogen Dioxide
   Carbon Monoxide
   Smoke Detectors
   Current Sensors
   Proximity Sensors
   Photoelectric Sensors
   Safety Light Curtains
   Cables and Distribution Boxes
   Oxygen Transmitters


Tel: 1-925-706-7433

Vaisala DMT152 Dewpoint Transmitter
Vaisala Instruments

DMT152 Dewpoint Transmitter

Vaisala DMT152 Series

Designed for OEM system integrations. Ideal for industrial applications to control very low humidity
The Vaisala DRYCAP® Dewpoint Transmitter DMT152 is designed for measuring low dewpoint in OEM applications, even down to -80°C . The excellent long-term stability and reliability of its performance is based on the latest DRYCAP® polymer sensor technology.

Low maintenance
The DMT152 mechanics have been designed for harsh environments requiring protection against dust, dirt, and splashed water. The DRYCAP® technology has a low maintenance need due to its excellent long-term stability and durability against condensation.

  • Compact
  • Accurate
  • Vaisala DRYCAP® technology with a polymer sensor
  • Measures dewpoint down to -80 °C (-112 °F )
  • Reduced maintenance costs due to long calibration interval
  • Fast response time
  • Withstands condensation
  • NIST traceable
  • Applications: compressed air, plastics drying, dry chambers, pure gases, and high-voltage circuit breakers
PDF File Datasheet
Dewpoint temperature measurement

Measurement range

-80 ... -30 °C (-112 ... -22 °F) Td
± 2 °C (3.6 °F) Td
Vaisala DRYCAP® 180U

ppmvolume concentration measurement

Measurement range (typical)
Accuracy at +20 °C (+68 °F), 1013 mbar

0 ... 500 ppm
±(0.2 ppm + 20 % of reading)

Operating environment

Relative humidity
Measured gases
Sample flow rate

-40 ...+60 °C (-40 ... +140 °F)
0 ... 100 %RH (up to +20 °C / +68 °F)
0 ... 50 bar (725 psia)
non-corrosive gases
no effect on measurement accuracy

Inputs and outputs

Two analog outputs (scalable)
Digital output
On/Off output is available (instead of the 2nd analog output)
Operating voltage with
     RS485 output
     voltage output
     current output

4 ... 20 mA, 0 … 20 mA (3-wire), 0 ... 5 V,
0 … 10 V
RS485 (2-wire)

11 …28 VDC
15 ... 28 VDC
21 ... 28 VDC


Housing material (wetted parts)
Housing classification
Stainless steel mesh filter
Mechanical connections
     option 1
     option 2
     option 3
Weight (ISO G1/2")

IP65 (NEMA 4)
AISI303, filter grade, 18 µm

ISO G1/2"
UNF 3/4" -16
190 g (6.70 oz)

DMT152 Dewpoint Transmitter

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