greenTEG develops, manufactures and markets Heat Flux Sensors (gSKIN®) and Thermoelectric Generators (gTEG®). gSKINs measure thermal flows (conductive, radiative, convective) fast and with high precision. gTEG®s harvest emission-free electricity from temperature differences for autonomous power supply. The gSKIN Radiation Sensor is especially suited for measuring laser power and solar radiation. Other applications include thermal measurements in buildings and calorimetry.

Company details

Technoparkstr. 1 , Zürich , CH-8005 Switzerland

Locations Served


Business Type:
Industry Type:
Energy - Energy Monitoring and Testing
Market Focus:
Globally (various continents)
Year Founded:

This company also provides solutions for other industrial applications.
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greenTEG develops, manufactures and markets thermal sensor and energy harvesting solutions. Our products classes consist of laser detectors, heat flux sensors, and customized sensor solutions for OEMs. greenTEG’s customers are active in markets such as building, industry, medtech and scientific.

We are supplying two main customer groups. Highly innovative OEMs integrate our technology to offer added value to their customers. Globally leading scientist use our sensors in experiments to generate new insights.

greenTEG’s thermal sensors (gSKIN) offer ultra-high resolution of thermal parameters. Temperature differences of 10 μK as well as heat fluxes below 0.05 W/m2 can be resolved. The sensors are applied in diverse fields such as: Assessment of insulation quality (U-Value), material testing, process monitoring, fouling detection, mass flow measurement and thermal error compensation. The gSKIN U-Value Kit is a plug&play solution for professionals in the area of building physics. gSKIN sensors are integrated in OEM products and used for high-precision measurements in R&D. Data loggers for easy read-out and further processing of the data complement the product portfolio.

gRAY laser power detectors enable fast and precise laser power measurements in a power range from 100 μW to 50W. gRAY detectors are sensitive to all wavelengths from ultra-violet to medium-infrared and feature a fast response time. They are suited for the integration into power meters as well as laser sources and systems. gRAY laser power detectors are available housed, mounted or as bare die components.