ZWN-BPC PIR sensor

Hi All

I don’t see these discussed here anywhere. Anyone set them up? Got some advice? OR got some good general advice for my first time using one of these devices?

Primary use: For now, I just want the lights to come on when people enter a room, and then turn off the lights when no one is in the room. But I think they should only come on when it’s dark outside, or when the sun goes down.

http://enerlites.com/zwn-bpc-ceiling-mounted-pir-motion-sensor.html

I got them on Amazon. It’s worth noting that they come with 2 AA Energizer Ultimate Lithiums, which are not cheap.

No need to reply. I think I need to dive into PLEG for this one.