Visonic Next MCW PIR with markings

[Alarms]

http://dbs2000ad.com/visonic/visonic-NEXT-MCW-PIR-with-markings.html

I recently bought several new
Visonic Next MCW PIR units and

some have two parallel lines drawn

on the IC.

Does anyone know what this means?

 

[Frank Olson]

http://dbs2000ad.com/visonic/visonic-NEXT-MCW-PIR-with-markings.html

I recently bought several new
Visonic Next MCW PIR units and

some have two parallel lines drawn

on the IC.

Does anyone know what this means?

That's more than likely the number "eleven". It's probably the number
assigned to the person that checked or packaged the unit.