Commercial and/or Residential manufacturer product guarantee to give you peace of mind.15 Year Limited
The surface for which the product can be installed upon. The surface should be clean, stable, and meet installation and warranty guidelines prior to installation.Floor Only
It can also be used as a redundant sensor to provide "peace of mind" in the event of a failure. Although a failure is rare, it is not impossible, and the installation of a spare sensor is inexpensive insurance.