My 2C I agree with the HOBO loggers (Made by Onset, not Hanwell). I don't consider $80 expensive for the U-10 T/RH model, but that's a personal opinion. You will also need the HoboPro software at $99. But for 6 rooms, you can have a real datalogging system for $600 complete. This is assuming you have a laptop to use for launching/downloading. If not, buy their shuttle for $250 or so. I have specific suggestions on launching/downloading that I would be happy to email directly to you if you are interested. Good luck. Marc American Conservation Consortium, Ltd. 4 Rockville Road Broad Brook, CT 06016 www.conservator.com 860-386-6058 *Collections Preservation Consultation *Conservation Assessments & Surveys *Environmental Monitoring & Low-Tech Control *Moisture Management Solutions *Collections in Historic Structures *Collections Care Grant Preparation *Conservation Treatment of: Furniture Painted Wood Horse-Drawn Vehicles Architectural Interiors Marc A. Williams, President MS in Art Conservation, Winterthur Museum Program Former Chief Wooden Object Conservator, Smithsonian Institution Fellow, American Institute for Conservation (AIC) ----- Original Message ----- From: Elizabeth Walton To: [log in to unmask] Sent: Thursday, January 29, 2009 10:38 AM Subject: Re: [MUSEUM-L] Need Advice on Thermohygrometers and Hygrothermographs I recommend the Hanwell Hobo systems, they are more flexible and save the data digitally. The first one you posted doesn't look like it records anything. Hanwells can start off a bit pricey (though less than the price of a hydrothermagraph) and can be upgraded later. I like the U series loggers. http://www.onsetcomp.com/data-logger At 07:20 AM 1/29/2009, you wrote: Dear List, I am in need of a climate monitoring system that will cover curation, lab, library, archives, and exhibit spaces. Minimally, I have six rooms to monitor. I am requesting advice on thermohygrometers and hygrothermographs. I have a limited budget and I am weighing options between the following systems at www.gaylord.com. 1) Item # WW-52045 & WW-52046 - a thermohygrometer with remote sensors (see link) - http://www.gaylordmart.com/adblock.asp?abid=14558&sid=37D77C65A7FB41F78DA863C43BDC4C 2) Item # WW-A1731 - Hygrothermograph, Standard Model, Maxant (see link) - http://www.gaylordmart.com/adblock.asp?abid=2151&sid=37D77C65A7FB41F78DA863C43BDC4C Can anyone recommend any other systems or suppliers? Sincerely, Timothy E. Baumann, PhD, RPA Curator of Collections Glenn A. Black Laboratory of Archaeology Indiana University 423 N. Fess Avenue Bloomington, IN 47408 Office: 812-855-0022 Fax: 812-855-1864 Email: [log in to unmask] Webpage: http://www.gbl.indiana.edu/ ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes). ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes). ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).