RHJ60A Firemen's Special Call Unit
Brand OKTECH
Certification N/A
Technical Parameters:
1. Rated voltage: DC 9V; 2. Alarm (sound): audio frequency: 3.5±0.3KHz, strong warning sound: ≥75dB, strong alarm sound: 104dB; 3. Signal (LED): flicker frequency: 4±1Hz, night visual distance: ≥4800m; 4. Alarm time (pre-alarm): pre-alarm start time: 30±5s; pre-alarm duration: 15±3s; 5. Alarm time (strong alarm): uninterrupted alarm time: >1h; discontinuous alarm time (10 minutes at interval): ≥119h; 6. Standby time: ≥120h; 7. Casing protection grade: IP67.
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