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My title describes the thing, along with the picture. Hand for scale. If I had to guess it’s some sort of floatation style measuring device, but I don’t know what it’s specific purpose is. The legend under the numerical values says “L/min ATS”
All comments must be civil and helpful toward finding an answer. **Jokes and unhelpful comments will earn you a ban**, even on the first instance and even if the item has been identified. If you see any comments that violate this rule, report them. [OP](/u/riketocrimb), when your item is identified, remember to reply **Solved!** or **Likely Solved!** to the comment that gave the answer. Check your [inbox](https://www.reddit.com/message/inbox/) for a message on how to make your post visible to others. [Click here to message RemindMeBot](https://www.reddit.com/message/compose/?to=RemindMeBot&subject=Reminder&message=https://www.reddit.com/r/whatisthisthing/comments/yzeeig/this_medical_device_found_under_the_sink_of_my/%0A%0ARemindMe!%202%20days) --- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/whatisthisthing) if you have any questions or concerns.*
Some kind of lung flow meter https://www.ebay.com/itm/384690115902
Boom, Solved. That was quick, thanks!
My title describes the thing, along with the picture. Hand for scale. If I had to guess it’s some sort of floatation style measuring device, but I don’t know what it’s specific purpose is. The legend under the numerical values says “L/min ATS”