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White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

A questioner said:

What is this? White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

r/whatisthisthing - White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

r/whatisthisthing - White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

r/whatisthisthing - White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

r/whatisthisthing - White and yellow plastic box (8x6x2 cm) that was attached to a fence in my yard. Under the back cover it has slots for two AAA batteries and a switch you can set to 1,2,3.

More info:
It’s been there for at least five years since I moved in and I finally decided to remove it and try to find out what it is. There are no markings on it and just a little circle/hole on the front side.

Some of the answers:

  1. Outdoor thermometer for in-house weather station, The switch is to change channels in case of interference
  2. Could be an LED night light with a photocell/sensor in the middle. Three brightness settings? Translucent face it is yellowed from the sun.
  3. Sensor from a wireless alarm system.
  4. Beacon from a wireless pet fence system
  5. I feel like the weather station ones usually have more openings and different sensors on them.
  6. Outside tempo transmitter. Probably for an Accurite time/date/temp display. I had one and it quit…
  7. Looks like the noisy part of a wireless doorbell.
  8. It could be a cat/pest noise making deterrent.
  9. I vote pest repellant over thermometer. No thermometer needs to be that large.

    People usually set these up outside to keep pests away from their yard. The switch probably changes the frequency/intensity of the sound or signal, whether it’s ultrasonic sounds or flashing lights, to make the area less appealing to pests.

    The overall size makes more sense for a repellant device needing to house a speaker or bulbs/LEDs, and 2 AA batteries is also overkill for a thermometer which requires far less current as it only needs to emit a signal, not a output a sound or light.

  10. Looks like a wireless doorbell camera

What do you think? Let us know in the comment!

Read More: The whole internet collaborated and couldn’t find what this is. I’m not sure what this is, ninety percent of people don’t know too…

In the quaint suburban landscape of [Your Town], nestled amidst the serene greenery of a typical backyard fence, a curious discovery has stirred intrigue among the locals. A small, unassuming plastic box, measuring a mere 8x6x2 centimeters, has been found attached discreetly to the wooden panels. Its appearance is as enigmatic as its purpose, inviting speculation and wonder from those who encounter it.

Upon closer inspection, the box reveals itself to be of a dual-tone composition, predominantly white with streaks of vibrant yellow. Its exterior, while lacking in ostentation, bears the subtle marks of weathering, suggesting it has stood sentinel against the elements for some time. What truly piques interest, however, lies beneath the nondescript back cover.

Removing the cover unveils a configuration that seems to defy conventional explanation. Inside, meticulously designed slots accommodate two AAA batteries, hinting at an intended function that relies on portable power. Adjacent to the battery compartments, a singular switch presents itself, its purpose shrouded in mystery.

Yet, it is the switch that provides the most tantalizing clue to the box’s purpose. With three distinct settings—1, 2, and 3—it prompts speculation regarding potential functionalities. Could it be a clandestine surveillance device, silently monitoring the activities of passersby? Or perhaps a covert communication tool, transmitting coded messages under the guise of innocuous anonymity?

Speculation runs rampant among the denizens of the neighborhood, each offering their own theories and conjectures. Some suggest it may be an elaborate prank, while others entertain the notion of extraterrestrial origins, invoking the allure of science fiction and the unknown.

Despite the intrigue it inspires, the box remains steadfast in its silence, offering no clues to its origin or purpose. Efforts to decipher its secrets yield no tangible results, leaving its true nature shrouded in ambiguity.

As days turn into weeks, the box becomes a focal point of conversation and speculation, serving as a reminder of the enduring allure of the mysterious and the unknown. Whether it is a relic of clandestine espionage or simply a whimsical enigma crafted by an anonymous neighbor, one thing remains certain: the white and yellow plastic box attached to the backyard fence continues to captivate the imagination and curiosity of all who encounter it.

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