What is this?

[u/NerdyAutistic]

This was installed into our in ceiling heating/air unit over night at my job. It was never been there before and my coworker was panicking and making a fuss about it.

[u/CharlesPrawnson]

Let me Google that for you and your coworker:

The device mounted on the upper-left corner of the ceiling air conditioner unit is a Mitsubishi Electric 3D i-See Sensor(specifically part of the PLFY or PLA series 4-way cassette indoor units). [1]
Functionality & Features

Thermal Imaging: It uses an advanced infrared sensor to detect the exact temperature profile of the room by continuously scanning the floor and walls.
Occupancy Detection: The sensor detects the location, number, and heat signatures of people in the room.
Direct/Indirect Airflow: Using the occupancy data, you can configure the air conditioner via its controller to either direct airflow directly at people for quick cooling/heating, or direct it away from them to prevent uncomfortable drafts.
Energy Efficiency: When the room is unoccupied, the sensor automatically signals the unit to switch to an energy-saving mode or turn off completely, reducing energy consumption.

If you are experiencing issues with room temperature regulation, draft directions, or need assistance configuring this sensor using your remote control, please let me know your thermostat or remote model number!

[1] https://www.godjicy.com

[u/NerdyAutistic → u/CharlesPrawnson]

!solved

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