High Sound Pressure Backup Warning Beeper 115dB 12~48 V Back Up Beeper

Basic Information
Place of Origin: China
Brand Name: Yuesonic
Certification: CE
Model Number: YS-B91
Minimum Order Quantity: 40pcs
Price: Basicly USD 15~25
Packaging Details: Neutral packaging,Size: 42*30*22cm, 20 pieces per carton
Delivery Time: 7-14 days
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 30000 pcs per month
Detail Information
Material: Epoxy Resin SPL: 112dB
Color: Black Plug: Customize
Waterproof: IP68 Function: Car
Certification: SAEJ1994 CE E-Mark
High Light:

back up beeper


car reverse horn

Product Description

12~48V 117dB high sound pressure buzzer for heavy duty trcuk car IP68 waterproof CE alarm buzzer

1. Specifications

Sound pressure 75±4(A)AT 4FT
Voltage 12~28VDC
Maximum current 0.5A
Temperature -40°C ~ 75°C
Frequency 500Hz~7KHz±10%
Work cycle 4second
Weight 110g


2. Description

1. BJX series is made for truck bus applications in low noise areas.
2. Intelligent models measure the ambient noise level and adjust their output level.
3. create a volume that is safe without being annoying or contributing to noise pollution.
4. Designed to meet all hash conditions and provide splendid durability.
5. Sealed in epoxy for protection against dust, moisture and vibration.
6. Easy to install, and many optional connectors/wire.
7. RoHS compliant, CE certified


High Sound Pressure Backup Warning Beeper 115dB 12~48 V Back Up Beeper 0




High Sound Pressure Backup Warning Beeper 115dB 12~48 V Back Up Beeper 1



3. Applications


Back-up alarm is a device intended to warn passers-by of a vehicle moving in reverse. They typically produce 1000 Hz pure tone beeps at 97-112 decibels. Matsusaburo Yamaguchi of Yamaguchi Electric Company, Japan, invented the back-up beeper. It was first manufactured as model BA1 in 1963. ISO 6165 describes "audible travel alarms", and ISO 9533 describes how to measure the performance of the alarms.

Although originally intended as a warning device, sometimes these alarms are used on vehicles in a situation where no one is ever likely to be a passerby. (For example, tractors in fields often use them even though no one is ever walking behind the vehicle). The noise, however, can be heard up to 3 kilometres (1.9 mi) away and disturbs residents and people within the vicinity but who will never be within the danger zone of the vehicle itself. In places, like the City of London, this noise pollution has led to a ban on the back-up beeper and alternatives must be used instead.

Back-up beepers are criticized by the public and in scientific literature. Beepers top lists of complaints to government roadbuilders about road construction noise. There is published concern that people become habituated to the ubiquitous noise, diminishing its effectiveness. The normal level of 1000 Hz pure tone beeps at 97-112 decibels, considerably higher than the long-term hearing loss limit of 80 decibelsStrategies such as adjusting the volume according to the ambient noise and changing the tone to include sounds above 1600 Hz and below 800 Hz for improved localization would improve the alarm, but improvements are not cost-effective for the manufacturer and, if implemented by the equipment owner, introduce liability for the owner.

Brains do not adapt to the repetitive and persistent sound of back-up beepers, but have evolved to process natural sounds that dissipate. The sound is perceived as irritating or painful, which breaks concentration.

In some countries, such as the United Kingdom, back-up warning systems using blasts of white noise are becoming more common, and are obligatory for suppliers of some large construction projects. White noise does not have to be as loud as beeps in order to be able to be heard over background noise, and people can more easily hear from which direction the signal comes.

While not addressing the criticism of the type of sound, units exist that moderate the volume based on sensing ambient sound.


4. Competitive Advantage

1). Reinforced nylong housing eliminates corrosion damage

2). Wire/connector/bolt mounting optional, easy to install

3). Voltage polarity protection

4). RoHS compliant, CE certified, IP68 protection


5. Information

Place of Origin: China
Brand Name: Yuesonic
Certification: CE/RoHS/SGS
Model Number: YS-BJX


6. Custom properties

Product Name: Back-up alarm Application: Outdoor
Weight: 110g Sound: human voice
Material: Epoxy resin Voltage: 12-28V
Standard: CE/ROHS/SGS Type: Car


7. Product commercial terms

Minimum Order Quantity: 100pcs
Price: negotiation
Packaging Details: T/T or western Union
Delivery Time: 3,000pcs per month
Payment Terms: 10 working days after received your payment
Supply Ability: Packed in box firstly,and then reinforced with neutral packaging for outer packing





Contact Details
Carol Tan

Phone Number : +8613584585528

WhatsApp : +8615295188159