What is the working principle?

It uses an electromechanical principle where manual rotation accelerates through a gearbox to drive a whistling wheel, squeezing air to produce a high-frequency alarm.

How long is the lead time for production?

The average lead time is one month during peak season and within 15 workdays during the off-season.

What payment terms are accepted?

Accepted payment terms include LC, T/T, Western Union, and Money Gram.

Hand Cranked Portable Mobile Alarm

Name: Hand Cranked Portable Mobile Alarm
Brand: Zhejiang Shuntong Electric Co., Ltd.
SKU: 2093651582

Zhejiang, ChinaZhejiang Shuntong Electric Co., Ltd.

US$65.00

1 Piece

Product profile

Customization

Available

Type

Industry Alarm

Signal Transmission

Wireless Alarm

Working Principle

Electromechanical

Transmission Mode

Wireless

Alarm Volume (within 1m)

≥110dB

Receive Frequency

433.92MHz

Sound Level

1252dB(a)@1m

Color

Black

Material

Aluminum Alloy

Function

Emergency Alert

Power Supply

220V/380V

Transport Package

Standard Export Packing

Specification

500-2

Trademark

SHUNTONG

Origin

Zhejiang, China

Production Capacity

20000PCS/Month

Key features

Power-Free Operation: Manual hand-cranked design provides effective alarm without external power supply.

High Decibel Output: Produces sharp, shocking sound up to 125dB(A)@1m with strong penetrating power.

Portable & Lightweight: Small size and light weight allow easy carrying and installation without tools.

Versatile Applications: Ideal for civil defense, prisons, mines, airports, and warehouses in critical situations.

Customizable Options: Available in Black color with Aluminum Alloy material and 125dB sound level.

Company profile

In-stock CapacityFast DeliveryLow MOQQuality Assurance

Zhejiang Shuntong Electric Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2017-08-09Nearest Port: NingboAverage Response Time: ≤3.10hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, CIP, FCA, EXW

AI-Powered supplier vetting

SummaryShuntong Electric Co., Ltd., established in 2009 in Zhejiang Province, specializes in high and low voltage equipment. It demonstrates strong certification credentials, an effective quality management process, and a strategic export focus with significant overseas sales. The supplier offers comprehensive OEM services for popular brands and maintains robust after-sales service procedures. However, limited innovation capability is noted due to the absence of SDKs and minimal R&D staffing. Their production capacity is modest with only one production line and no ongoing volume reconciliation. Despite this, the supplier provides flexible customization options and holds numerous international certifications.

Supplier typeShuntong Electric Co., Ltd. is a professional manufacturing enterprise focused on high and low voltage equipment.

CertificationsShuntong Electricals holds ISO9001, ISO14001, OHSAS18001, CB, SEMKO, and CE certifications.

After-Sales capabilityThe supplier has written procedures and records for quality management and clear procedures for handling customer complaints.

Financial creditFinancial data is consistently available over the last three years, indicating financial stability.

R&D capabilityThe supplier lacks SDK availability and has a limited number of R&D engineers.

Production capacityOperates one production line with no ongoing volume reconciliation, indicating limited production capacity.

Customization capabilityOffers a wide range of customization services from samples to full customization.

Client casesProducts are well-received in both domestic and overseas markets, suggesting positive customer experiences.

Product Q&A

Q:How does the alarm work without electricity?

It is a manual hand-cranked device. By shaking the handle clockwise at 50-80 rev/min, the internal gears drive the whistling wheel to produce high-pressure air and sound.

Q:What is the sound level of this alarm?

The sound level can reach 125dB(A)@1m. The actual volume depends on the speed of the hand cranking.

Q:Is the color customizable?

Yes, the product description lists Black as a custom option for the color.

Q:What materials is the alarm made of?

The alarm is made of Aluminum Alloy, as listed in the custom attributes.

Q:Where can this alarm be used?

It is suitable for civil defense, detention centers, prisons, mines, airports, pastures, oil depots, warehouses, hotels, and restaurants during critical situations.