Vaisala DMT132 Dewpoint Transmitter
Starting at $525.00

Not in stock. Call for availability [?]

Need Help? Call 1-800-884-4967 8:00am to 5:30pm ET


  • -4 to 122°F (-20 to 50°C)
  • ±1°C (±1.8°F) accuracy
  • Resistant to compressor oil and most other chemicals
  • 10 to 28 VDC
  • Optional LED warning light

The DMT132 provides optimal performance in the operating range of refrigerant dryers. In the measurement range of -3 to 20°C (+26.6 to +68°F), where the refrigerator dryers typically operate, the Td accuracy is ±1°C (±1.8°F). The instrument incorporates the proven Vaisala HUMICAP® sensor, which is resistant to compressor oil and most other chemicals, thereby providing excellent long-term stability.

It takes just a few minutes to install the DMT132 directly into a dryer or compressed air line through a G1/2" ISO thread. Vaisala sampling cells can also be used. The loop-powered electronics mean that wiring is easy and power requirements are low. The DMT132 operating voltages can be as low as 10 VDC.

Verifying the performance of the DMT132 is easy with the compatible Vaisala hand-held DM70 or HM70 meters. The user can perform possible adjustments with the Vaisala HMK15 Humidity Calibrator.


Vaisala 219690 USB Cable
Connect transmitters to a PC via a standard type A USB port
Vaisala MI70 Calibration Cable
6.5ft (2m) connection cable for calibrating and field-checking instruments that include MI70 indicators


Please consider these optional accessories.

Vaisala Loop Powered External Display
Nokeval loop-powered external LCD display with optional alarm relays
Vaisala Tube Filter
Tube filter for the DMT132
Vaisala Special Cover Set
Special Cover Set that fits the HMK15, DMT132, and the HMP110
Vaisala NPT Adapter
NPT adapter for the DMT132
Vaisala LED Plug
LED plug for the DMT132
Vaisala ISO Plug
ISO" 1/2 plug for the DMT132
Vaisala NPT Plug
NPT1/2" plug for the DMT132
Vaisala Sealing Ring Set
Sealing ring set (3 pcs U-seal) for the DMT132
Vaisala Humicap180R Spare Sensor
Spare Sensor for the DMT132
Vaisala DMT242SC Basic Sampling Cell
Basic sample cell with only the main sampling cell body
In Stock
Vaisala DSC74 Sampling Cell
Sampling cell with quick connector and leak screw
Vaisala DMT242SC2 Sampling Cell
Sampling cell with 1/4 inch Swagelok connectors
In Stock
Vaisala DSC74B Sampling Cell
Two pressure sampling cell