Title: can't use it
Review: good quality, reasonable price. Problem is I cannot control the sensitivity other than taping over areas on the sensor "eye", but even after doing that it still picks up passing cars that are on the street over 75' away. The ringer only plays a "dong, dong, dong" every time it rings. I use this in an office to signal the door opening, and it would be nice to have one 'ding' or one short 'buzz' or some other less-annoying chime. I will stop using this for the above problems, and look for something else with some options.
Is this product review negative?