Occupancy Sensors, PIR or Ultra Sonic

[the blur]

What's the proper type of occupancy sensor for a school lunch room? It's an open door lunch room, about 6' wide, and I don't want it picking up movement from people outside the lunch room. Only as they enter the room. I know some of them are crazy sensitive, and pick up people from around the corner..

 

[ptonsparky]

Don't they have a sensitivity setting?

 

[the blur]

Don't they have a sensitivity setting?

The problem with that, is they are all different. Where as they should be an industry standard.

 

[ptonsparky]

The problem with that, is they are all different. Where as they should be an industry standard.

Well, I guess go with ones that have a sensitivity setting. Pay more, get more. Hopefully.

 

[ActionDave]

The problem with that, is they are all different. Where as they should be an industry standard.

I haven't seen much difference between name brands like Leviton or P&S. They all have adjustable infrared and ultrasonic sensing out of the box and wire up the same. Wouldn't surprise me if they all come from the same factory.

 

[ron]

Masking labels are also included with many sensor products to allow installers or customers to create custom coverage patterns by blocking “masking” a portion of the lens to meet the application requirement.