Model HA-2520Patent # 7,081,811K9 Heat Alarm® ProWith Protective Relay ModuleInstallation ManualRefer to the vehicle specific instructions sheet during install.Life Safety EquipmentIt is vital that all Safety Features are installed, tested and working properly.Special Attention needs to be made to Power and Safety Warnings.This Life Safety Equipment must be installed to Emergency Vehicle Up-fitting Standards!Radiotronics Inc.1315 SW Commerce WayStuart Fl 34997Phone: (772) 600-7574Fax (772) 600-7012www.AceK9.Com