Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time with this.

Claims of 900 feet are completely and utterly overblown for real world applications. I couldn't get 40 feet of reception with the receiver inside the house. Perhaps if I put the receiver in direct line of sight outdoors I could have gotten better reception, but gee, then I wouldn't be able to hear the buzzer! Very cheap construction, no seal on the outdoor sending unit, etcetera etcetera. I wasted about 2 hours today trying to get it to work and then giving up and trying to stuff it back in the box. Grrrrr! I'm going to try the Dakota at twice the price...