You realize per NFPA Standards 2 in and 2 out makes you very limited. With everything burning and leaking now days it is better to be full CBRN compliant.
1 simple Hazmat 2 in 2 out 2 decon with support staff 10 to 12 is minimum on the scene. This counts for a simple anhydrous ammonia leak or a farm chemical truck accident.
We have more than two packs per engine. I said that our grant was big. I think we got just under 30 packs, a lot of new turnout gear, etc, but it amounted to two new packs per station. All of our packs are CBRN, not industrial. CBRN is what conditions they are rated to be in, not the bells and whistles of newest NFPA requirements, as you know, so I'm not sure why you keep talking about it.
I know I said I have a couple of new packs from that grant, but in total, my engine got two 2018 edition X3's from it and the old Scott 2.2's filled out the rest of the seats. We later got a 3rd one, and just a month ago we got our 4th, which is a 2025 edition X3 pack that allowed us to pull off the last wire frame Scott 2.2 and move it to the air truck with the other five. My air truck has four 2018 edition packs (two Scott X3's and two MSA G1s), all are well within their service lifetime. The old wire frame Scotts are also CBRN, not industrial, but they will be replaced as soon as we can as the composite cylinders are coming to the end of their life cycle, even with the extended DOT allowance of MAE testing. Back to what started this, none of our packs are Bluetooth, but our new handhelds do have it.