EP115 Advancements in technology through the eyes of Ben Walker at RETROTEC (April 2023)
Building HVAC Science
00:00
The Differences Between the DM to and the Mark To
The DM to was used for both blower door testing and duck leakage or a duck leakage. Tritec came on board with retro tech in the era of the DM to to a yeah, which I guess I'd be like the early 2000s or something like that. So it's simply a digital pressure meter. It's had a nine volt battery in there used to calibrate them with those micrometer like a hook gauge. That's how we'd calibrate DM one spec then.
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