http://www.teledyne-ai.com/oem/diving.html The R22D or R22DHO have molex kk 3 terminal contacts. These respond to partial pressure of O2 so the response varies in proportion to (O2 concentration)*(pressure). The diving ones have a high rejection to condensation and surface contamination. Lifetime 21% O2 @ STP should be good for 3 years. Somewhat less at ~1ATM partial pressure O2 with ambient pressures in excess of 15ATM! Generally the R22D response from new is 9mV to 11mV in air after allowing a few hours to waken up if straight out of the package. Best Regards David Greig ______________________________ GigaDyne Ltd Buchan House Carnegie Campus Dunfermline KY11 8PL United Kingdom t: +44 (0)1383 624 975 www.gigadyne.co.uk ______________________________ -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D. Sent: 21 March 2006 20:12 To: [log in to unmask] Subject: [TN] Oxygen sensor Can anyone recommend a good oxygen sensor that can be used to verify the level of a nitrogen blanket? I am looking for one that can be used to verify the oxygen percentage inside of the reflow oven, or on a rework station, or within a nitrogen box used for storage of components. Thanks for any responses. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- -- Virus scanned by Lumison. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------