Instrument for outdoor micro-environment measurement

Related instruments Temperature & humidity, Air speed & wind, Thermal comfort

Shown below is a system integrated by OTM for outdoor micro-environment measurement:

The system consists of the following components:

  • HD52.3DP17: ultrasonic anemometer for wind speed, wind direction, temperature, humidity, and solar irradiance measurement
  • TP876.1.I: 50 mm globe thermometer
  • HD33MT.4: data logger supporting 4G communication

At the customer’s request, we also customized a stand for the system. A similar system was customized by OTM before. The new system has castor wheels and it is easy to move the system around for measurement.

The power consumption of the system is very low. With the internal 3.4 Ah battery, the system can run for around 5 days without charging. The data can be directly downloaded via a USB cable. With a 4G SIM card, it is possible to connect the data logger to the cloud.

Instrument for outdoor thermal comfort measurement (with solar panel and cloud service)

Related instruments Temperature & humidity, Air speed & wind, Thermal comfort

Shown below is an instrument integrated by OTM for outdoor thermal comfort measurement:

Below are the key features of the system:

  • Four quantities are measured: air temperature, relative humidity, airflow speed and globe temperature
  • Data logger included
  • With 4G connectivity and cloud service
  • With solar panel
  • Suitable for outdoor 24×7 monitoring
  • The height of the stand is adjustable in the range of 0.9 m to 1.5 m

Shown below is a screenshot of the cloud service portal:

Listed below are the key components in the systems:

50 mm globe thermometer for thermal comfort applications

Related instruments Temperature & humidity, Thermal comfort

Shown above is a 50 mm diameter globe thermometer, with Class A 4-wire PT100 sensor. The model is Delta Ohm TP876.1.I. An alternative model with 150 mm diameter (TP875.1.I) is also available. Refer to the instrument datasheet for more information.

For the working principle of globe thermometers, please refer to this article.