At 21:16:16 Dick:

The best gas analyzer advise would be to buy one with an Andros gas bench inside. The Andros BAR 90 bench, which is used in the Snap-On MT 3500, OTC 4000, Bear 200 & 400, KAL 5000 and CAS (and of course DJ4GAS and DJ5GAS)has proved to be ex... Login to read more.