A Carbon dioxide sensor never is "low-cost", perhaps the best economic choice is an hybrid sensor (solid electrolyte) as FIGARO TGS4160 or the new TGS4161 (output is analog). Usually solid electrolyte sensors seems to have a lower accuracy regarding other technologies (NIR), however the detection range isn't too bad and reaches 8,000 ppm. Try to find informations at: http://www.figarosensor.com/index.html or: http://www.conelec.dk/grafik/news/4161ProductInfo0801.pdf regards Marco ----- Original Message ----- From: "Marc Nicholas" To: Sent: Thursday, June 05, 2003 4:00 AM Subject: [EE]: CO2 sensor element > I need a CO2 sensor element for a project...price is important, and it > should be able to read 0 to at least 5000 (and pref. Higher) parts per > million. > > Analog or digital output would be fine, and I can temperature compensate it > via other means, so don't necessarily need an integrated solution. > > Any leads welcomed :-) > > > -marc > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu