Hi Sylvia:

We have used and recommend the following oxygen sensors for cryogenic environments as they will freeze fail.
https://www.pureairemonitoring.com/

Regards,
Simon Lappi, Ph.D.
EHS Safety Program Manager
RTI International
3040 E. Cornwallis Rd
RTP, N.C. 27709
slappi**At_Symbol_Here**rti.org
O: 1-919-485-1249
C: 1-984-281-9891
RTI International
Delivering the promise of science for global good

-----Original Message-----
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU> On Behalf Of SYLVIA TARINBROUSSEAU
Sent: Tuesday, September 27, 2022 4:49 PM
To: DCHAS-L**At_Symbol_Here**Princeton.EDU
Subject: [DCHAS-L] Oxygen monitor recommendations

EXTERNAL: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Hello

I am in need of oxygen monitor recommendations for our tank room. We have a six pack of helium as well as nitrogen tanks. Its end of fiscal for us, so of course it would decide to go belly up.

Thank you

Sylvia Tarin-Brousseau
Sr. Forensic Chemist
DEA Southwest Laboratory

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