7tone hand operated siren

Specifications

Products Name: hand operated siren

Specifications

*Alarm siren for auto or fire,with ABS housing,complete waterproof. 

*7 tone siren

My advantage :

1. Fast Delivery
2. OEM and ODM service.

Inspection equipment and environment :

1.Usual enviroment(Room temperature,Standard atmosphere)30M Space.

2.Please Test within 1M from the fluorescent lamp(Or other light source which has the same effect)

The distance between the sample and inspector is more than 30 CM

3.Platform Testing (1m from the dB meter to the siren )

4.DC12V Power source, Digital DB meter

Electric inspection:

1.Rated operational current:300-1200MA DC12V,

2.S.P.L :115±3DB   DC12V

3.Working Temp:-20°C +100°C

4.Rated working Voltage:DC12V

5.Method:A Durable testing 1H

Interval testing:32H

6.The quality of the sound, frequency is the same as the sample  

Appearance Test:

1.Plastic and hardware

(1)plastic no fault, no deformation. Water lines. Scratch etc.

(2) the power cord no scratches, copper core no exposed, coating without peeling off.

(3) screw without sliding teeth, no cross layer peeling, no rust

(4) parts must be installed by safety fastening, no loose phenomenon.

(5)Sticker is indispensable. NO Floating paste,bad paste, etc.

2. Package.

(1)    Packing based on customers’requirement.

(2)    Clean product without dust and sundries

(3)    The package cannot have any damage and spot, and must be dry .

(4)sticker is indispensable,no cock. Product without short weight.      

Drop experiment:

Fall from 1m high to all round

(1)    The function of the machine will have no any change

(2)    The appearance is without any loose or damage after the experiment

(3)    The package no deformation.

Other inspections:

internal inspections:

(1)Parts on the PC must keep tidy

(2)Shining welding spot, no cold solder joint

(3)PCB board should be very clean

Warranty terms:

1. Under the terms of this warranty, if the product have a failure occurs under normal usage within warranty period, we will provide free/rework new products based on the proof-documents

2. If Failure or damage due to incorrect operation, wire connection, or anything other do not follow our instruction, we will provide paid maintance within warranty period.