Hi Julie, I do not know a datalogger, but there are certainly sensors used in lab freezers like the -80C so maybe VWR or some lab research company will have what you need. Ours are all on alarms and those link up to the facilities and the lab managers even get phone calls if they fail.
Good luck Genevieve ================================================= Genevieve E. Tocci (she, her, hers) Senior Curatorial Technician Harvard University Herbaria 22 Divinity Ave., Cambridge, MA 02138 U.S.A. Phone: 617-495-1057 Fax: 617-495-9484 [email protected] From: [email protected] <[email protected]> On Behalf Of [email protected] Sent: Monday, December 9, 2019 4:51 PM To: Museumpests <[email protected]> Subject: [pestlist] Freezer Datalogger: Recommendations? Hello, Pestlist Looking for recommendations for a freezer treatment datalogger that can go to very low temps. Backstory: We set our freezer to stay between -35 and -25F (the variation from its cycling). However, there are instances where the temperature has dipped below -40F (which is also -40C if anyone else thinks that's interesting!). Unfortunately, -40 is the temperature our Onset HOBO bluetooth loggers lose functionality. One by one they have been erroring. After it happens once that logger can no longer function at temperatures under -20Fish. Have others ran into this problem? Ideally our freezer wouldn't get that low, but this is a problem that seems to happen sporadically despite regular maintenance. Can anyone recommend a logger that functions under -40F? I see many that have probes, but those will not work with our setup. I've looked into Onset and Thermoworks primarily, I'd be happy to investigate other big names if suggested. Regards, Julie McInnis Collections Care Specialist Fine Arts Museums of San Francisco -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/ebd60997-acca-4866-88e4-c00ef541a2ca%40googlegroups.com<https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_msgid_pestlist_ebd60997-2Dacca-2D4866-2D88e4-2Dc00ef541a2ca-2540googlegroups.com-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dfooter&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=EYdhJ0HrhAMcA2aVQ-I4N7lml00zxsXPbHYeP7843No&m=PMvdErA1SV_ysB1O-sa5YWGPtiLPi3saK2Q4e6X3uoc&s=ZnxztYI77j8wRCFurUd5Yo30t65R6zXwCubYp6f-cPs&e=>. -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/BN8PR07MB6337ACB39DD657CFB7C06048D55A0%40BN8PR07MB6337.namprd07.prod.outlook.com.
