Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works as it is supposed to.

Easy to install. Good reception between transmitter and receiver. Detects vehicles and large animals (deer) in driveway. I've seen only one false alarm in the few weeks it has been installed - not sure what caused it. Also I was able to connect this with a previous purchased unit so that I now have two transmitters in different locations that send their report/signal to two receivers located in different parts of my house. Works great.