Long Range Acoustic Device LRAD

Ultrasonic System High-Powered is a 16 X -converter device producing and emitting a powerful, highly directional ultrasonic (i.e. almost noiseless) acoustic array capable of causing nausea, disorientation, nausea and other unwanted symptoms.

The impact of this device depends on the sensitivity of the target.

The human ear hears only a limited part of the sound spectrum, about 20Hz-20kHz (20,000 Hz). Above this range is considered ultrasonic and below it INFRASONIC. Although very uneasy, vibrations in these ranges can still affect the human body. Carefully designed scientific studies have been conducted and confirmed what is called the Hypersonical Effect – that even without knowingly hearing it, high frequency sound can have a measurable effect on the mind and body.

Ultrasonic System High-Powered is capable of two main functions: Function 1 (17 - 25 kHz Range inaudible) if the device is set to a frequency that is known for the production of paranoia, nausea, disorientation and many other physiological effects; Functions 2 (10 - 17 KHz audible range) allows you to use the system as a sound signal to intimidate off intruders or invaders. Both modes can be used in combination and are easy to operate from the top panel by the user.

These ultrasonic devices were used by law enforcement personnel as well as government agencies around the world in counterterrorism and crowd control settings. This "industrial power" ultrasonic device is now available for non-governmental sales for the first time. It provides a serious substantial ability to disrupt and disperse the assembly. This device has been used in recent years to "influence" speeches, demonstrations, and crowd dynamics more often than one might have predicted.

Police forces often mount these devices into vehicles for possible crowd control applications.

In some countries, the high-performance ultrasonic system is used to intimidate affected teenagers from lingering around shops in target areas (shopping malls, passing shop windows, parks, rail and anywhere else that cause problems). Its function is based on a phenomenon known as presbycusis (related to age hearing loss), which begins after the age of 20, when hearing loss is first affected by the highest frequency (18-20 kHz). The high performance ultrasonic system emits a high frequency tone that can only be heard on teenagers, but not older people, and it is very annoying. It forces teenagers to move away from the target area for an average of 5-10 minutes.

We also offer a Six-Transducer ultrasonic system with high power (140 dB), model AA76124, and high-powered Hundred-Converter ultrasonic system, model AA76125. 1 x 1 m (face) AA76125 can be made in a waterproof case at the customer's request. We can deliver in similar systems with so many special converters (loudspeakers) according to customer requirements.

Ultrasound is a gray area in many ways when the application involves animal control or even as a human deterrent against unauthorized intrusion. It is always better to consult with local, municipal and state laws before using this facility to protect homes or property.

There have been numerous requests for information about the impact of these devices on people. First, we want to make it clear that any device like this should be deliberately applied to humans, and we do not recommend this use due to the possibility of acoustically sensitive people being very irritated. However, it will produce anywhere from an extremely unpleasant and irritating sensation to a strongly painful effect in most people. Not all will have this effect on an equal footing. For example, younger women are more affected than older men due to being more acoustically sensitive.

Specification:

Range: (15 - 30 m), 

output: 135 dB above 30 ° directional propagation 

Power supply: 230 AC / 12V DC 

accessible control 

Dimensions: "(15.2 x 15, 2 x 10.2 cm) 

Number of sensors: 16