Laboratory instruments  

For general purpose (wet or dry) laboratory measurements of scalar irradiance, such as in culture vessels, incubation chambers, and photosynthetrons, we have:

• QSL Quantum Scalar Laboratory Sensor  measures almost 4pi steradians solid angle (scalar) irradiance to afford accurate light measurements from virtually all directions.   Powered directly by the communications port on a PC,  the QSL and our new LOGGER₂₁₀₀ data acquisition software make a highly portable irradiance measurement system.