Will only work with lights controlled by up to two switches.

Product was exactly what I wanted. Worked great! Prompt delivery from Smarthome, will definitely order from them again.

Good service - fast delivery, what I wanted

Excellent choice and easy to instal and I am no electrician. wish I could afford to do every room and entrance way.

item isn't fully functional

Leviton PR180 Unit installed in 3-way circuit more than 1-yr ago; generally works fine. Occasionally will activate without any occupancy in the hall. From reading various specifications, most likely this is due to activation of the air conditioner system. Unit has adjustment for time and ambient light. Would be helpful to have a sensitivity adjustment.

Work well enough for their purpose. These sensors are built fairly cheaply and you get what you pay for. However, with judicious use, what you pay for might be exactly what you need. : 1 These switches will NOT work with CFL's, with lamps using a GU-24 2-pin socket, with any variation of the GX-24 4-pin socket, or any modern electronic ballast fluorescent lights. They work with incandescent and halogen lights, as well as old magnetic ballast T12 lights that are being phased out. I have not tried these switches with LED lights. 2 These seem to be of an older design than the manual-on IPP15 or the commercial-grade OSS10 switches. The light sensors stick out further from the wall, and the sensitivity and timeout controls are hidden behind the wallplate cover. The control gradations are not labeled i.e. it's impossible to set the timeout to exactly 5 minutes, or light sensitivity to exactly 100 lumens. By contrast, the IPP15 has a nice timeout dial you can get to without removing the switch cover plate. : 3 A pair of PR180's can be easily used in a 3-way circuit by following these instructions: http://www.askmehelpdesk.com/attachments/electrical-lighting/17569d1237008593-wiring-leviton-3-way-motion-sensor-switches-pr180_2_switches_1_load.pdf The setup is actually a dual-switch single-pole the 3-way yellow wire is NOT used. The light stays on as long as EITHER switch has tripped, and not timed out. One BOTH switches time out, the light turns off. Works very well for hallways and stairways. So, they're cheap, cheerful, they see me coming down the stairs from fifteen feet away, and you can stick a pair of them in a three-way circuit. Not bad for $20.

Nice features and easy installation, but the PIR sensor doesn't have much range.

Does what it is supposed to do. Just as I expected

Great item