Best-Selling Security Protection Helmet - A9 Audio life detector – Topsky

Overview
It is used for searching personnel in disaster scenes such as building collapse, using the weak audio collector of the detector and the voice communication system to determine the location and status of the trapped persons, and providing rescuers with information about the victims under the ruins through audio signals and establishing voice contact .

Application
Fire fighting, earthquake rescue, maritime affairs, deep well rescue, civil defense system

Product Features
Detect and pinpoint personnel
Function of reservation and precise positioning
Five detectors can automatically convert or simultaneously collect sound
Voice call with probe bit
Automatic audio simulation of light changes
Microprocessor control
High-performance filter: Frequency band width can be set; Powerful sensitivity amplification function
Suitable for a variety of on-site rescue environment

Product introduction
A9 Audio Life Detector Audio Life Detector can quickly and accurately locate the victims buried under the rubble due to various natural disasters, and establish contact with the survivors through the audio transmission system. The instrument uses a special microelectronic processor to identify tiny vibrations propagated in air or solids through five extremely sensitive audio vibration detection heads.
A9 Audio Life Detector is a life detector developed with the most advanced sensing technology. The operation is convenient and simple, even inexperienced operators can easily complete the detection task. The high-performance filter can not only eliminate interference noise, but also amplify the sound signal under the ruins. To
A9 Audio Life Detector has a display function, the product is easy to operate, and has a noise shielding function.
Techinical parameter
The F1 filter is a high-pass filter that can be adjusted continuously between 0 and 5 kHz. It means that those frequencies below its set value can be greatly attenuated.
The F2 filter is a band-pass filter with a band pass of 1 kHz when the volume is –6 decibels. It can be adjusted continuously within 0 to 5 kilohertz, which is used to filter a received signal.
5 shock detectors, sensitivity 15*10-6 PaF1