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IrelandLevel 2 Jeff's breath test passes half a million views
The Ubiquiti teardown checks for real CO2 sensing, then opens the housing to identify the hardware inside.
Level 2 Jeff
Story of Why this story? The channel's weekly summary: what went up this week, what is drawing views now, and where the channel stands among similar channels.
How is Ubiquiti selling this for $99?
Things we can learn from the video
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- 1:15Jeff breathes onto the monitor to test whether it responds to actual carbon dioxide.
- 2:26The indicator turns red and the UniFi dashboard shows a sharp CO2 spike.
- 10:04The teardown identifies a Sensirion SEN66 as the internal sensor module.
- 13:43After reassembly, the monitor reconnects and resumes reporting measurements.
- 14:45Jeff recommends the monitor for people who already have a Ubiquiti network.
Jeff Geerling breathes directly onto an air-quality monitor, waits for the indicator to turn red, and checks the graph. It is an unglamorous test with a useful purpose: finding out whether the device measures carbon dioxide rather than estimating it from something else.
That October upload, "How is Ubiquiti selling this for $99?", has passed half a million views and remains Level 2 Jeff's busiest video. No new uploads arrived this week, but the channel's existing collection added roughly 68,000 views.
The breath test is only the beginning. Jeff peels back rubber feet to uncover screws, opens the casing and identifies a Sensirion SEN66 sensor module. Looking up its single-unit component price helps explain his surprise at the finished product's cost, though that is not the same as a manufacturer's bulk purchasing price. His recommendation comes with a practical condition: the monitor needs Ubiquiti's network-management software.
Elsewhere in the archive, the Raspberry Pi programming jig and ShadyTel's temporary telephone exchange continue attracting smaller daily audiences. It is a particularly Jeff-shaped selection: factory tools, networking hardware and an entire phone company assembled for a weekend.
Subscribers held steady, while daily viewing is well below the channel's usual level. Nearby gadget channels cmcteq and ZTT Extras had much larger viewing weeks; Level 2 Jeff's quieter stretch belongs chiefly to a sensor whose first examination involved being breathed on.
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The videos drawing views on Level 2 Jeff right now
- Channel
- Level 2 Jeff
- Subscribers
- 175,000
- Channel views, last 7 days
- 68,330
- Videos published this week
- 0
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💡 Test your knowledge
Which company's sensor module does Jeff find inside the Ubiquiti monitor?
Jeff identifies the internal module as a Sensirion SEN66 during the teardown.