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Watching the SpaceX Demo-2 launch preparation livestream, I saw both Bob and Doug using some sort of little gadget. It looks like a chunky cell phone, or a flat gopro. It appears to have an LCD on the back side (the side we can see).

identify object 1 identify object 2

pictures and learnings from the Saturday launch- he removes it from his leg pouch and sticks it above the monitor. I assume it is velcroed on.

identify object saturday 1 identify object saturday 2

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    $\begingroup$ This question was posted only a few seconds before a similar question. If one of them receives an answer, the other should be closed as a duplicate. $\endgroup$
    – DrSheldon
    May 27, 2020 at 19:50
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    $\begingroup$ @dragongeek here's the timestamp: 1:53:25. $\endgroup$
    – tedder42
    May 28, 2020 at 8:56
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    $\begingroup$ Guesses: - Accurate clocks, synchronized in-person with the ground equipment. You can't have enough clocks in space travel; accurate timing determines whether you can execute precise maneuvers at all. - Wireless receiver for telemetry or radio communication from the suits - Matching retro iPods $\endgroup$ May 30, 2020 at 2:43
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    $\begingroup$ This looks like what was called in shuttle an "egg timer". Just a cheap LCD timer with Velcro on the back. Will seek confirmation. $\endgroup$ May 30, 2020 at 16:59
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    $\begingroup$ Picture of the shuttle eggtimer here i.imgur.com/nmiPqK4.jpg (red arrow) $\endgroup$ May 30, 2020 at 17:02

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Not entirely sure of his source, but Scott Manley seems to assume these are portable timers. Timestamp of 5:00 at this Youtube Link.

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  • $\begingroup$ That's great! Accepting based on DJSnM's knowledge, if anyone comes along with a more solid source I'll unaccept and move it to theirs. $\endgroup$
    – tedder42
    Jun 8, 2020 at 21:03
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I believe it's CDN PT2 kitchen timer. In shuttle era PT1A was used.

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    $\begingroup$ Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center. $\endgroup$
    – Community Bot
    Sep 19, 2023 at 9:00
  • $\begingroup$ It sure looks just like it and CDN is a brand that NASA has used in the past. In fact here is a CDN timer on a Soyuz. NASA has used other brands also, here is a shot from STS-132 showing two timers, the brand on the right is Time Check, the brand on the left is different but unfortunately illegible because of a sticker placed over it. Here's John Glenn's Time Check from STS-95 $\endgroup$ Sep 19, 2023 at 14:03

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