Temperature Transmitters TMT120/130

Multi-purpose high-precision transmitters with exchangeable probes

Temperature transmitters TMT120 and TMT130 offer accurate, reliable measurement capability with easily exchangeable probe. These multi-purpose instruments are the perfect choice for demanding HVAC applications like data centers, cleanrooms and other critical environments. 

5 year warranty HVAC devices


  • ±0.1 °C / ±0.18 °F accuracy
  • Analog output options 0…10 V / 4…20 mA (loop powered) 
  • Wall-mounted, duct-mounted with a kit, or outdoors with a shield 
  • Probe can be attached directly to the transmitter or using a cable
  • Traceable calibration (certificate included)

Models available: TMT120 (current output), TMT130 (voltage output)

See also models with humidity sensors: HMT120/HMT130

Robust design for industrial measurements

The necessities of demanding professional use have been taken in careful consideration in the design of the instrument. TMT120 and TMT130 are applicable for indoor and outdoor use alike, and the multi-purpose instrument fits in various applications and installation requirements. For transmitters including humidity and temperature measurements, the models HMT120 and HMT130 are recommended.  

The measurement probe of the instrument can be easily removed and replaced with a new one without having to adjust the transmitter, which allows for easy and quick recalibration of the sensor. Maintaining measurement traceability is easy as the probe can be exchanged with minimal downtime and process disturbance. 

The transmitters are available as wall mounted or with a remote probe coming with a cable. The remote probe is ideal for rough conditions like high-temperature applications, or where space is limited. The devices can also be mounted outdoors using a Vaisala installation kit and the Vaisala Radiation Shield DTR502B.


High Precision

Temperature is measured with a highly accurate Pt1000 sensor element to enable precise and reliable controls of HVAC systems.

Stability - Reliability

The high quality and excellent stability of the measurements enables precise and reliable controls of HVAC systems, even in demanding conditions or sites.

Traceable Accuracy

The instruments are individually adjusted and delivered with a traceable (ISO 9001) calibration certificate. The humidity transmitter is easy to calibrate also on site using a Vaisala handheld meter or Vaisala Insight PC software.

Fit for demanding measurement needs

Vaisala provides a wide range of HVAC transmitters to complement the building automation system even in the most demanding indoor environments and their control needs - data centers, other industrial buildings, hospitals, cleanrooms; or monitoring and control of indoor environmental quality in any space where health security matters.



Further reading

Any questions? We're here to help.

Drop us a line and we will get back to you shortly.