Detector type: optical alarm volume : > 85DB at 3 metres Suitable for rooms from 20 to 40 m2 Break time: about 9 minutes with test button and pause button with battery indicatorBattery: 3VDC CR123A Lithium, replaceableBattery life: 1 year Operating Temperature: -10 ~ 40°COperating Humidity: 25~85%Including mounting material Approval: VDS 3131/ G216009, EN14604
Brand: Grundig.
Material: Acrylonitril Butadieen Styrene (ABS).