Manual Fire Alarm Siren
Delivery term:The date of payment from buyers deliver within days-
Price:
Negotiable
- minimum:
- Total supply:
-
Delivery term:
The date of payment from buyers deliver within days
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seat:
Beijing
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Validity to:
Long-term effective
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Last update:
2021-03-08 23:00
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Browse the number:
330
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- Contactaixin:
Contactaixin:
lvnengjd(Mr.)
- Email: telephone: phone:
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Area:
Beijing
Address:No. 688, Yangsi Road, Zhang'an, Jiaojiang District, Taizhou City, Zhejiang Province, China
- Website:
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As it is a hand-cranked siren, the primary speed of the hand-cranked siren determines the sound effect of the siren. Rotation speed is directly proportional to sound effect. Relatively speaking, the higher the speed, the louder the sound. There is a difference between people shaking the alarm. People's height, strength, shaking speed, etc. are all direct factors that affect the sound effect of the siren, so we have made a macro regulation here, the primary speed of shaking cannot be less than 90r/min, otherwise it will not reach the expected sound effect.
Sound Rating: |
110±2dB(A) @1M |
Output Frequency: |
550±20Hz |
Single Tone |
Net Weight: |
1.72Kg |
Carton Size: |
15.5x15.5x30CM |
http://www.lkrescue.com/