Automatic meter portable device for emergency lighting, has light sensor detecting brightness of emitted light, and plate connected with electronic parts that are housed inside casing that is provided with battery

摘要

The device has a housing (2) arranged inside electronic elements. A face (2a) of a jar is provided with a switch (3) for switching on/off two separate lights. A light operating indicator (6) is arranged at a back side of a temporary medium. A diffuser (4) is connected to an emergency testing light. A light sensor detects brightness of emitted light. A plate is connected with electronic parts that are housed inside a casing that is provided with a battery.