I just got the LaserScan unit delivered. Yes, it does what it advertises by having two vertical red lineslaser running back and forth on your wall. But I think the 2 beams are running across the wall too fast, they should've incorporated a dial so we can control the motor speed. Once I got the unit in hand, it does not feel/look like a product that came off an assembly line so I took it apart to see how the unit was put together out of curiosity. This unit is definitely put together in someone's basement/garage. The components inside does not have a perfect fit. The front laser & gear assembly is just screwed into the plastic housing. The circuit board was cut to fit inside the housing. There's a screw & glue that holds the main gear from the motor shaft. I hate how they soldered the power adapter wire directly into the circuit board, why not a male/female plug for convenience??? The key hole for mounting the unit was manually cut. The front cover over the laser and gear assembly is flimsy plastic, should be glass. Overall, I think this is the worst investment I've made on a home security product. Way over priced due to the craftsmanship, quality of materials used, adapter is wired into the unitwhy??????, no ability to adjust scan speed. This product should cost no where near $155 and if you were to opt for the Deluxe which includes a built in timer, it will be $245. What a rip off!!! Too bad they don't allow a refund on this piece of junk. I am giving it two stars because it does work, so far. but it's rip-off and no reason to deserve more stars. WARNING: if anyone buys one of these and decides to take it apart, make sure you don't plug it in and turn it on. If you run this unit while the housing is taken apart, the gears and the sensor will be out of sync. And if you don't re-sync the gears, it can wind the wires up and rip it from the circuit boardanother dumb design!!!. Should've incorporated pedals to deliver power to the laser like how power is delivered to the rotating shaft inside a motor.