Carrie, I've used the LogTag recorders in the understory of lowland Caribbean tropical forest - La Selva Biological Station and other sites in Costa Rica and Nicaragua. I've been very happy with them. I initially tested their accuracy by running two data loggers next to each other for a period of 4 days. The temperature and relative humidity estimates were nearly identical, with mean differences of <1%RH or 0.5 degrees C. Most recorders lasted approximately 3-4 months of regular use, with a minimum of ~2 months and a maximum of 6-7.
Cheers, Nicole Michel ********************************************************* Nicole Michel PhD Candidate 4060 Stern Dept. of Ecology and Evolutionary Biology 400 Boggs Tulane University New Orleans, LA 70118 Cell: 504-261-2942 Fax: 504-862-8706 http://studentweb.tulane.edu/~nmichel ********************************************************* -----Original Message----- From: Ecological Society of America: grants, jobs, news on behalf of Carrie Woods Sent: Wed 4/7/2010 4:08 PM To: [email protected] Subject: [ECOLOG-L] data loggers in tropical forests I'm looking to set up temperature/relative humidity data loggers in tropical rain forests and was wondering if anyone knew of the best data loggers to use out of Hobos (http://www.onsetcomp.com/), LogTags (http://www.microdaq.com/logtag/haxo-8.php) and iButtons (http://www.talk1wire.com/DS1923-F5--Hygrochron-Temperature-Humidity-iButton_p_101.html). I know Hobos have been used in field studies in the tropics but they are much more expensive than LogTags and iButtons. The benefit of Hobos is that the battery can be changed whereas with LogTags and iButtons, once the battery dies, they're useless. Has anyone tried these data loggers in a tropical setting that can recommend the best option? thanks, Carrie
