There's TSB for the IQ Panel 2/2+ regarding SRF sensors after AC power outage. Read the TSB for more information.
TSB: Notice regarding SRF sensors on IQ Panel 2 after AC power failure
Posted in TSB and tagged 7-INCH TOUCHSCREEN, 7″ TOUCHSCREEN, ADC, ALARM.COM, DR HORTON, DSC, HOME AUTOMATION, HOME CONTROL, INTERNET OF THINGS, IOT, IQ PANEL, QOLSYS, QOLSYSINC, RESIDENTIAL SECURITY, SECURITY, SMART HOME, SMARTHOME, TYCO.