Expert in Optical & Thermal Measurement Solutions
Related instruments Light & radiation
Below is an illuminance transmitter from Senseca for visible light measurement.
Specifications:
We’ve just released the 2025 edition of our laboratory profile. Please click the image below to view it.
Related instruments Weather station, Airspeed & wind, Thermal comfort, Temperature & humidity
Below is a weather station integrated by OTM for outdoor thermal comfort monitoring:
The station measures the following five environmental parameters:
These measurements are used for outdoor thermal comfort analysis, such as calculating the Universal Thermal Climate Index (UTCI). The data is automatically logged by the instruments and uploaded to a cloud server.
The following key instruments are used:
We also provided installation and maintenance services for this project.
Related instruments Wireless & web data loggers, Temperature & humidity, air speed & wind
Shown below is an indoor thermal comfort monitoring station integrated by OTM. It is with cloud function (via 4G) and is great for reliable 24×7 remote monitoring.
Shown below is the configuration of the system:
The data is automatically uploaded to the cloud via 4G. Shown below is a screenshot of the cloud platform:
Four results are measured:
A Python code has been developed to calculate and plot the thermal comfort results. Shown below is a plot based on the results captured above.
The following products are used in the system:
Related instruments pressure transmitters
Shown below is a Senseca ECO 230 precision barometer/altimeter.
The instrument measures barometric pressure and calculates the corresponding altitude. The instrument is very compact, with dimensions 108 mm x 54 mm x 28 mm and a weight of 140 g.
Related instruments Weather station, Airspeed & wind
Shown below is an HD51.3DP147 all-in-one anemometer for coastal environment applications. It measures wind speed, wind direction, temperature, humidity, barometric pressure, and solar irradiance with a single instrument. Multiple output types are supported, and the MODBUS-RTU output is used by most users.
The HD51.3D… series is very similar to the HD52.3D… series. The main advantage is that HD51.3D is more rugged and it satisfies the the requirements of the MIL-STD-810G Method 509.6 and EN ISO 9227:2017 (salt fog anti-corrosion test). For Singapore customers, we recommend this model for applications in coastal environments.
Related instruments Wireless & web data loggers, Temperature & humidity, Airspeed & wind, pressure transmitters
A LAN-based data logging system was integrated by OTM for air temperature, relative humidity, barometric pressure, and air speed monitoring. The following instruments were used:
All data loggers in the network automatically upload the results to a server in the LAN periodically. Shown below is the result viewer in the HDServer1 software. The data logging network can be expanded with more loggers added.
Related instruments Pyranometers, Weather station
Shown below is a Senseca PYRAsense03 class C pyranometer with MODBUS-RTU output:
The new PYRAsense series pyranometers are equipped with diagnostic sensors of internal temperature, pressure, and humidity. The meters are with compact size and easy to mount.
The following table of results is presented in our glass optical & thermal property test report:
We sometimes receive questions about whether the testing fee can be reduced by excluding some optical property results.
Please refer to this page for information on the testing procedures for glass optical and thermal properties. The optical properties serve as intermediate results in determining thermal properties. The solar heat gain coefficient (SHGC) and shading coefficient (SC) are derived from 5 sets of raw data on spectral transmittance/reflectance. All other results are calculated from this same data set without requiring additional testing.
Therefore, even if some optical properties are omitted, the testing procedures remain unchanged, and the testing fee will not be reduced.
Related instruments Thermal comfort & microclimate, Wireless & web data loggers
You can now receive timely WBGT alerts and monitoring results directly via WhatsApp — on your phone or computer — along with daily, weekly, or monthly summary reports.
Read more here for full details.
Shown below is an HD35EDWWBGT outdoor WBGT monitoring station with a large water tank and cloud service.
The features include:
Shown below are the software and cloud portal screenshots:
Shown below is a photo taken from a site:
