... -zone, Class B conventional fire alarm control panel, meet the latest UL864&EN54 standard. Key words: Fire alarm Control Panel,conventional fire alarm control panel, fire alarm panel, fire alarm, FACP, fire alarm system, fire-fighting, fire panel, fire alarm controller, fire alarm control ... 10°C~+50°C Related Humidity: ≤95% (40±2°C)Orena Sales and ServiceShenzhen Orena Photonic Technology Co., ...