Portable Stand Air Raid Siren Hand Crank Super Loud Emergency Alarm 125 dB For Sale

Portable Stand Air Raid Siren Hand Crank Super Loud Emergency Alarm 125 dB

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Transmission distance Φm: 3000

Audio frequency: 600 ± 20 Hz (depending on hand-crank speed)

Sound level: 125±2dB(A)@1m

Color: Camouflagegray

weight: 18.45 lb

Dimensions 1: 30.31 H x 14.69 W x 14.57 D inches (upright)

Dimensions 2: 20.5 H x 13 W x 14.57 D inches (upside down)

An ideal alarm equipment used by civil defense,military, detention centers, prisons, mines, airports, pastures,oil depots, warehouses, hotels, hotels and other enterprises inthe event of a critical situation.

Alarm principle:

The hand-cranked siren is manually rotated bythe crank handle, accelerated step by step through thetransmission of the gear box, and then driven by the transmissionblock to drive the ringing wheel to run at high speed. During thehigh-speed operation of the whistling wheel, the absorbed airproduces high-speed and high-pressure squeezing out of thefixed window of the fixed wheel at the same time, thereby playingthe role of alarm.

Item Descriptions:

• We only accept the payment by Paypal.
• Buyers are required to carefully follow payment instructions on the checkout page, and note down any necessary details on it (e.g. bank account details).
• If buyers fail to follow the instructions on the checkout page, We are not liable for any unidentified payments and subsequent delivery delays.

• Shipment is within USA.
• Items are generally dispatched within 1 working day after payment is cleared.
• Buyers will also be able to trace deliveries online with a unique tracking number. While we endeavor to send all our items with tracking numbers, there may be a few smaller items that are not sent with a tracking number.
• Buyers have full responsibility to provide us with the correct delivery address on the checkout page before payment is made.
• Re-delivery fee may be charged to buyers for items that are undelivered and/or returned to us due to incorrect delivery address or unsuccessful deliveries.

• Items will only be delivered during normal working hours (9am to 5pm on weekdays. Delivery is not available on weekends, public holidays or after business hours.

• If it is the buyer\'s personal reason to return the item, the return postage fee would be at buyer\'s charge. Plus, the buyer also need to pay 10% restocking fee.
• Returns must be agreed by both parties prior to the actual return with 30businessdays.
• Buyers must also strictly follow our returns procedure when returning an item.
• We reserves the rights to provide buyers a replacement, parts or a full or partial refund. Charges may apply if the product is damaged by buyers when the returned item is received.
• Should you change your mind and wish to return your item, this can be done if you notify us within 30 days of receiving your item.

• We make sure everything we do honors that connection – from our commitment to the highest quality items we can achieve, to the way we engage with our customers and communities to do business responsibly.
• You Are guaranteed to have your items delivered or your money back
Transmission distance Φm: 3000

Audio frequency: 600 ± 20 Hz (depending on hand-crank speed)

Sound level: 125±2dB(A)@1m

Color: Camouflagegray

weight: 18.45 lb

Dimensions 1: 30.31 H x 14.69 W x 14.57 D inches (upright)

Dimensions 2: 20.5 H x 13 W x 14.57 D inches (upside down)







An ideal alarm equipment used by civil defense,military, detention centers, prisons, mines, airports, pastures,oil depots, warehouses, hotels, hotels and other enterprises inthe event of a critical situation.







Alarm principle:

The hand-cranked siren is manually rotated bythe crank handle, accelerated step by step through thetransmission of the gear box, and then driven by the transmissionblock to drive the ringing wheel to run at high speed. During thehigh-speed operation of the whistling wheel, the absorbed airproduces high-speed and high-pressure squeezing out of thefixed window of the fixed wheel at the same time, thereby playingthe role of alarm.







Item Descriptions:




• Buyers are required to carefully follow payment instructions on the checkout page, and note down any necessary details on it (e.g. bank account details).
• If buyers fail to follow the instructions on the checkout page, We are not liable for any unidentified payments and subsequent delivery delays.

SHIPPING
• Shipment is within USA.
• Items are generally dispatched within 1 working day after payment is cleared.
• Buyers will also be able to trace deliveries online with a unique tracking number. While we endeavor to send all our items with tracking numbers, there may be a few smaller items that are not sent with a tracking number.
• Buyers have full responsibility to provide us with the correct delivery address on the checkout page before payment is made.
• Re-delivery fee may be charged to buyers for items that are undelivered and/or returned to us due to incorrect delivery address or unsuccessful deliveries.
• Items will only be delivered during normal working hours (9am to 5pm on weekdays. Delivery is not available on weekends, public holidays or after business hours.

Terms of Sale
• If it is the buyer\'s personal reason to return the item, the return postage fee would be at buyer\'s charge. Plus, the buyer also need to pay 10% restocking fee.
• Returns must be agreed by both parties prior to the actual return with 30businessdays.
• Buyers must also strictly follow our returns procedure when returning an item.
• We reserves the rights to provide buyers a replacement, parts or a full or partial refund. Charges may apply if the product is damaged by buyers when the returned item is received.
• Should you change your mind and wish to return your item, this can be done if you notify us within 30 days of receiving your item.

ABOUT US
• We make sure everything we do honors that connection – from our commitment to the highest quality items we can achieve, to the way we engage with our customers and communities to do business responsibly.
• You Are guaranteed to have your items delivered or your money back