Why install reversing alarm and warning alarm? Reversing
alarms and warning alarms, also known as backup alarms or reversing
buzzers, are installed in vehicles and equipment to alert
pedestrians, workers, and other nearby people to the presence of
large moving objects that may be difficult to see. They are
commonly used in construction machinery, garbage trucks, delivery
vans, and other vehicles and equipment that can pose a danger to
pedestrians or workers. When a vehicle is reversing, the reversing
alarm usually emits a loud beep, which is a warning sign that
alerts people who may be walking or working nearby.Warning alarm is
similar, but may be activated in different situations, such as when
a vehicle is turning or changing lanes. The purpose of these
warning alarm is to help prevent accidents and injuries, especially
in busy and crowded environments where visibility may be limited.
Although some areas may have noise restrictions related to
reversing and warning alarms, many countries require certain types
of vehicles and equipment to have these safety features installed
and functioning properly. This helps keep drivers and pedestrians
safe and can help prevent accidents and injuries in the workplace
and on the road.Suitable for: trucks,coaches,buses and
plant1.SpecificationsSound pressure97±4(A)AT
4FTVoltage12~48VDCMaximum current0.6ATemperature-40°C ~
75°CFrequency500Hz~7KHz±10%Work
cycle4.23secondWeight380g 2.Description1.B80 series is made
for truck bus applications in medium/high 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 3.ApplicationsBack-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 Advantage1).Reinforced nylong
housing eliminates corrosion damage2).Wire/connector/bolt mounting
optional, easy to install3).Voltage polarity protection4).RoHS
compliant, CE certified, IP68 protection 5.InformationPlace of
Origin:ChinaBrand Name:YuesonicCertification:CE/RoHS/SGSModel
Number:YS-B8-S6.Custom propertiesProduct Name:Back-up
alarmApplication:OutdoorWeight:400gSound:talking
alarmMaterial:Epoxy
resinVoltage:12-24VStandard:CE/RoHS/SGSType:Heavy
machinery 7.Product commercial termsMinimum Order
Quantity:30pcsPrice:negotiationPackaging Details:T/T or western
UnionDelivery Time:1000,000pcs per mont
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