I have a Teledyne Mixchek Trimix analyzer for sale. I'm the original owner. The Oxygen sensor was new in January, from Narked@90, and I can share the receipt. The helium sensor is not replaceable, but it is currently working great. This was made in May 2009. I don't know the helium sensor life expectancy but have had confirmation of sensors from 2002 still functioning well. It will come with a power supply, a lp hose adapter, and an Oxycheq DIN adapter. Teledyne is a very prominent maker of analytical equipment, and it has never had a problem that wasn't remedied by a new Oxygen cell. I bought a Divesoft, and I'd like to offset some of the cost. My email and phone# are written on it. If I sign it, the thing will be worth more...or we can figure out what safely takes Sharpie off of plastic. Asking $450, and it is currently located in LaCrosse, WI. I can do PayPal, Venmo, or Zelle.
