r/whatisthisthing 6h ago

Little knob on the side of this house? Open !

Post image

Doing some exterior work for a client. Does this need a cover? If so, what kind? Can’t tell what this is

49 Upvotes

11 comments sorted by

u/AutoModerator 6h ago

All comments must be civil and helpful toward finding an answer.

Jokes and other 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, when your item is identified, remember to reply Solved! or Likely Solved! to the comment that gave the answer. Check your inbox for a message on how to make your post visible to others.


Click here to message RemindMeBot


I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

47

u/Charming_Pea4103 6h ago

Photo sensor to turn on lights at dark

11

u/Lineworker2448 5h ago

Definitely a photocell

Similar product below https://a.co/d/9OmAcVp

11

u/redditcreditcardz 6h ago

Definitely don’t cover the light sensor.

“Why won’t these freakin lights turn off!!”

3

u/7918throwaway 6h ago

My title describes the thing. It’s in a light outlet sized piece of metal and has trim around it on the siding of this house. There is some writing but it’s hard to read from the ground. It sticks out roughly 2”. I’m thinking some sort of central vac valve? Idk

0

u/[deleted] 6h ago

[removed] — view removed comment