Can anyone help me to identify this device
The serial number on the device is R8201901
Can anyone identify the components on the PCB?

 

hi,
It is part of a security alarm system.
Is there any lettering on the unit cover.?
E

 

Is it possible to trace back who made this PCB from the serial number

 

Plus, it's a high amp switch, which China can not produce it. Like IGBT, but smaller than the IGBT.

 

hi,
Very unlikely from that number
Is there are company names on the cover of this unit.?
Post a photo shot.
E

 

Plus, it's a high amp switch, which China can not produce it. Like IGBT, but smaller than the IGBT.

Where do you see that on your first photo shot.?
E

 

Where do you see that on your first photo shot.?
E

I guess. 240 Volts

 

hi,
Very unlikely from that number
Is there are company names on the cover of this unit.?
Post a photo shot.
E

Negative.

 

From the PIR sensor on the PCB as well as from the markings on the terminals, it is an alarm system motion sensor..
But it is not standalone and so someplace there is a master-control bix that includes a power supply.

Did you just move in to this place, or is it a rental property? Does this device have a cover that you removed?
And now that you know what it is, what do you want to do with it???

 

From Left to Right: (looks like) 12 volts; GND; Alarm; Alarm.
Just guessing here but it appears that the unit is powered from 12 DC volts. The "Alarm" part of the circuit is likely just an electronic switch. When motion is detected (assuming it's a motion detector) it closes the contact between the two alarm wires, thus signaling back to a master control box that motion has been detected.

There are two terminals that are unused, labeled "Tamper". There may be an add on that detects and triggers an alarm if someone attempts to disable the sensor.

Someone asked if you're new to this home, buying or renting. They may be wondering if someone has placed a covert camera in the dwelling for voyeuristic intentions. That little black unit in the middle does not appear to be a camera. A camera would need a lens. So I don't think it's purpose is nefarious. And given that it's in a corner of a ceiling it may be strategically located to detect motion before an intruder can detect the sensor's presence.

Somewhere in the house should be a master alarm box. Or if you're part of a complex the master box may be in someone else's dwelling. For what reason - I haven't a clue. But when I installed alarm systems back in the early 80's there would be a control box in the dwelling. Anything else would likely be considered illegal, as it could constitute spying or voyeurism.

 

Looks like a typical CO2 sensor to me.

 

Looks like a typical CO2 sensor to me.

I respect your opinion but I disagree. Would a CO sensor (not CO2) emit a red light? Digital cameras can be receptive to IR light. I use my cell phone camera to determine when my IR TV Remotes are working or not. My security cameras appear as bright lights to my cell phone. Plus, I think the more commonly advised location for CO detectors is closer to the floor, not on the ceiling.

I may be wrong.

 

Hi Tony,
Do you mean a CO sensor.?
E
Sorry Max... just read your post.

 

I think the thing that looks like a camera (With the lens missing.) is a PIR sensor. A picture of the cover would help. We could then see if it had the typical lens assembly that is used on PIR detectors.

Les.

 

It's just a motion sensor (PIR) that can turn on lights for some period of time after triggered. There is a 6-pin male header with a grid printed next to it. A female jumper is likely inserted to short one pair of male headers. The grid show that one position is a 58-second, 109-second or 300-second delay. That would be how long the lights stay on.

 

Do you mean a CO sensor.?

Yup !

 

It's just a motion sensor (PIR) that can turn on lights for some period of time after triggered. There is a 6-pin male header with a grid printed next to it. A female jumper is likely inserted to short one pair of male headers. The grid show that one position is a 58-second, 109-second or 300-second delay. That would be how long the lights stay on.

Labelling two of the wires “alarm” would be strange then.

 

Labelling two of the wires “alarm” would be strange then.

Trigger, alarm, switch - all work in the same way. We have something very similar to what is shown in a long hallway at an office - there was no wall-space for a switch so a PIR trigger was installed.

 

Looks like a PIR sensor.

 

Why would a lights control (occupancy sensor) have connections for ALARM and TAMPER???? And where is the cover with the lens. The tamper detect switch is next to the output relay in the very first picture, at the right side. Why offer guesses ??