SAEJ1994 97dB Epoxy Resin Golf Cart Backup Beeper Alarm

12~24V 97dB High sound quantity clean human voice car truck warning alarm reverse buzzer waterproof customise CE siren

1. Specifications

2. Description

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.

The samples of a white noise signal may be sequential in time, or arranged along one or more spatial dimensions. In digital image processing, the pixels of a white noise image are typically arranged in a rectangular grid, and are assumed to be independent random variables with uniform probability distribution over some interval. The concept can be defined also for signals spread over more complicated domains, such as a sphere or a torus.

Some "white noise" sound (Loud)

An infinite-bandwidth white noise signal is a purely theoretical construction. The bandwidth of white noise is limited in practice by the mechanism of noise generation, by the transmission medium and by finite observation capabilities. Thus, random signals are considered "white noise" if they are observed to have a flat spectrum over the range of frequencies that are relevant to the context. For an audio signal, the relevant range is the band of audible sound frequencies (between 20 and 20,000 Hz). Such a signal is heard by the human ear as a hissing sound, resembling the /h/ sound in a sustained aspiration. On the other hand, the /sh/ sound in "ash" is a colored noise because it has a formant structure. In music and acoustics, the term "white noise" may be used for any signal that has a similar hissing sound.

The term white noise is sometimes used in the context of phylogenetically based statistical methods to refer to a lack of phylogenetic pattern in comparative data. It is sometimes used analogously in nontechnical contexts to mean "random talk without meaningful contents".

4. Competitive Advantage

5. Information

6. Custom properties

7. Product commercial terms

Beijing Silk Road Enterprise Management Services Co.,LTD is a professional company focus on Car Parts business. Beijing Silk Road also will responsible with exporting and logistic business.

Founded in 2009, Our company is a leading manufacturer and supplier of Car Spare Parts in China.

We have many good cooperation business relationship at home and abroad, and a good team together, We will continue to make great efforts to achieve a win-win future for our global customers!