Third-party certified to EN54-3 (Sounders). Impressive 100dB(A) sound output @ 1m. Includes 31 selectable primary tones and an optional secondary tone. Two volume levels (high and low) Alarm Current at 30Vdc = 5.5mA. Alarm Current at 18Vdc = 3.8mA. IP21C rated. Manufactured in the UK by C-TEC
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