GL PHOTOMETER 3.0 TEC is a class L (DIN 5032-7:2017) photometer with thermally stabilized photodiode. High sensitivity and high sampling rate (125 kHz) enables extensive measurements of light flicker in addition to regular photometry. It is prepared for goniometric measurements to work together with stray light eliminating tube. Such setup does not use optical elements responsible for cosine correction. This device connects directly to PC by USB, to be controlled by GL SPECTROSOFT or dedicated API for external software use.

A high-sensitivity, Class L (DIN 5032-7:2017) photometer equipped with a thermally stabilized photodiode. It supports advanced light flicker analysis with a high sampling rate of up to 125 kHz, alongside standard photometric measurements. The device connects directly to a PC via USB and is operated using GL Spectrosoft or a dedicated API for integration with external software. It is also configured for goniometric measurements in combination with a stray-light-eliminating tube. In this configuration, no optical components for cosine correction are used.
Key Features:
- Illuminance measurement Class L
- Thermally stabilized sensor
- High sensitivity for goniophotometry
- 125 kHz 18 bit sampling rate
- Super wide dynamic range in a single setting mode
- Controlled via USB connection
Applications include high quality flicker measurements with long term sampling for detailed temporal light analysis, and goniometric measurements where precise angular distribution and flicker behavior of luminaires must be characterized.
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