Sounder external wired G2 blue lens no cover (order: SDR-CV)
- Selectable between Self Contained Bell (SCB) or Self Actuated Bell (SAB) modes:
- - In SCB mode the sounder, in alarm condition, draws its power from its integral internal battery
- - In SAB mode the sounder is driven from the control panel
- - Low-volume maintenance mode
- - Self-supporting lid
- - Built-in spirit level
- Sound output 100 dB at 1 meter
- Low current consumption (35mA and 225mA in-alarm current)
- Lid and rear tamper detection
- Selectable cut-off timer
- Choice of siren tones
- Compliance: EN50131-4 Grade: Grade 2 (SDR-WEXT-G2 and SDR-REXT-G2), or Grade 3 (SDR-WEXT-G3),PD6662:2010, EN50131-4:2009
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