We use the HOBO Dataloggers (Onset Corporation) and find them very useful not only for light intensity, but also for temperature and relative humidity. They are inexpenive, can be set up for a range of collection intervals, store the data, and then can be downloaded for computer storage.
Try Googling: Onset Dataloggers and you will find all their models. We have used the Model HLI, which is a single purpose light meter/datalogger, but you might think about Model H08-004-02, which is an RH/Temp/Light Intensity multi-purpose data logger.
Cheers,
Mike Grusak
*************************************************
Michael A. Grusak, Ph.D.
USDA-ARS Plant Physiologist
Associate Professor
Dept. of Pediatrics, Baylor College of Medicine
USDA-ARS Children's Nutrition Research Center
1100 Bates Street
Houston, TX 77030-2600
phone: 713-798-7044
FAX: 713-798-7078
e-mail: mgrusak from bcm.tmc.eduhttp://www.bcm.tmc.edu/cnrc/faculty/grusak.htm
Learn about our involvement in the HarvestPlus
Program to combat global micronutrient
malnutrition at: http://www.harvestplus.org/
*************************************************
-----Original Message-----
From: plant-ed-bounces from oat.bio.indiana.edu [mailto:plant-ed-bounces from oat.bio.indiana.edu] On Behalf Of Cohen, William S
Sent: Friday, December 07, 2007 11:54 AM
To: plant-ed from magpie.bio.indiana.edu
Subject: [Plant-education] Inexpensive Radiometer
We would like to monitor light intensities in our greenhouse and have the data saved in a laptop. Does anyone have a suggestion for an inexpensive radiometer that has data acquisition capability?
Dr. William S. Cohen
Associate Professor
Department of Biology
University of Kentucky
101 Morgan Building
Lexington, KY 40506-0225
Voice: [859] 257 1030
Fax: [859] 257 1717
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