Detec InteriScanner (as well as all other ELD technologies) requires a conductive substrate directly below the membrane for valid results. When testing conventional roofing assemblies, a conductive substrate such as Detec TruGround Conductive Primer, must be installed directly under the membrane during membrane installation.
This device is battery powered using six AAA batteries. An extra set of batteries is included in the case. We recommend changing the batteries after every 16 hours of testing to ensure valid testing results.