Just like you, we love a deal! But more importantly, a working deal! Anytime we can get our hands on something used, we always make sure its working or if its not, its an easy fix. We recently found some used D-16s! We have cleaned them, tested them and they are now ready for you!
The Used D-16’s are found here: https://www.gas-sensing.com/d16-portasens-monitor-used.html#970=