Plant scientists and biologist require to closely monitor the intensity and quality of light. This provides essential information during trials and experiments.

Macam offer two portable radiometers measuring the photo-synthetic active radiation, PAR, models Q201 and Q203. The latter can also be supplied with a radiometric flat response filter ring and a photopic response filter ring.

Q201 PAR Radiometer

The Q201 PAR radiometer offers lower cost combined with a Macam high accuracy PAR response, cosine corrected detector.

The operating range of 0 to 1,9999 µmol.m-2.s-1 makes the Q201 suitable for sunlight and controlled environment chamber measurements. Other measurement ranges are available.

Q201 Brochure in Acrobat pdf format (430Kb)

Q201 Handbook in Acrobat pdf format (85Kb)

Q203 Radiometer

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 in Acrobat pdf format (40Kb)

Q203 Handbook in Acrobat pdf format (274Kb)

Q102 PAR Radiometer

This radiometer was supplied with three filter rings for PAR irradiance, illuminance in Lux and irradiance (400 - 1000nm) in µW/cm²

The Q102 radiometer has now been replace with the Q201 and Q203 radiometers.

Macam offer a repair and calibration service for the Q102 radiometer.