The Q203 radiometer has a laboratory detector with up to three interchangeable filter rings for PAR and radiometric (400 - 1000nm) irradiance measurements and a photopic filter ring for illuminance (Lux) measurements.

The microprocessor control within the display unit features auto or manual ranging, and has special functions for recording the average, minimum and maximum light signals from unstable sources. Other features include a RS232 serial port for connection to a PC.

The Q203 radiometer can also be supplied with waterproof detector housing for absorption measurements in the water column. The signal instability due to the surface wave effect can be minimised by using the averaging special function on the radiometer.

Q203 Brochure