|Epoxy Resin And Metal
|CE And E-Mark
ecco backup alarm,
115dB White Noise Backup Alarm,
ecco back up alarms
115dB 12 Voltage Reverse White Noise Backup Alarm ECCO
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.
Product commercial terms
|Minimum Order Quantity:
|T/T or western Union
|3,000pcs per month
|10 working days after received your payment
|Packed in box firstly,and then reinforced with neutral packaging for outer packing
|-40°C ~ 75°C
|BkX series is made for truck bus applications in High noise areas.
|Intelligent models measure the ambient noise level and adjust their output level.
|create a volume that is safe without being annoying or contributing to noise pollution.
|Designed to meet all hash conditions and provide splendid durability.
|Sealed in epoxy for protection against dust, moisture and vibration.
|Easy to install, and many optional connectors/wire.
|RoHS compliant, CE certified
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.
|Place of Origin: