- How are reviewers describing this item?
great, alert, set, loud and low.
- Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 47.
- Our engine has discovered that over 90% high quality reviews are present.
- This product had a total of 335 reviews as of our last analysis date on Oct 30 2018.
My husband runs a construction yard with six surveillance cameras and the screens are in his office
Adding a motion sensor to the system was going to cost $100 more, so after research, i found this
The motion sensor sets on the staircase and the base is in his office on the chime setting with the extra ac adapter one may purchase