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SEL-324S Spot - Ceiling spotlight microphone jammer

SEL-324S "Spot" is a high-power microphone (including cell phone microphones) and audio recorder jammer integrated into a common ceiling LED spotlight case, for equipping offices or other premises in order to prevent unauthorized audio recording using recording devices.
SEL-324S "Spot" is a high-power and efficient microphone jamming device due to its thought-out design that includes high-quality directional ultrasonic transducer array that pushes a complex, tailor-made noise waveform on a frequency band that is below human hearing point, but right in the zone of common audio microphone bandwidth, applying a constant noise pressure on the microphone's membrane.
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An array of 24 ultrasonic transducers in the "Spot" are installed in a thin (the height of the device is 40mm) drum-shaped ceiling spotlight case.
 
Due to SEL-324S ceiling mounting position, a multipath propagation effect is created, which reflects the generated noise from surfaces and items, further increasing the suppression area and efficiency.
 
Features:
• An array of 24 high-quality piezo-ceramic transducers, controlled by a microchip that automatically shifts the noise signal in time and frequency domains, achieving best possible jamming efficiency and rendering any actual speech signal on the microphone unintelligible.
• Special power supply: device draws power from the standard ceiling speaker DC wiring: 12 V, and starts automatically whenever power is applied.
• Easy to use control: can be turned on/off via presence of power in the power supply line.
• Wireless RF remote control.
• Easy mounting spring brackets.
 
SEL-324S Spot package contents:
• SEL-324A "Speaker" jammer, white color finish;
• Power supply adapter for 12 V DC, 2A;
• Owner's manual;
• Cardboard shipping box.
 
Technical characteristics:
Generated noise frequency bandwidth 24-26 kHz
Number of ultrasonic transducers 24 pcs. 
Type of emission interference complex structured ultrasonic noise
Microphone Suppression Directionality perpendicular to the plane of ultrasonic emitters

On/off switch

presence/absence of 12 V power in line / Remote control
Average effective jamming range 4 meters (Effective jamming range may vary based on type of microphone of the audio device and its relative position to the jammer )
Power supply +12 V DC
Continuous operation time unlimited
Case material ceramics
Mounting Installation Dimensions (Minimum) D127x40 mm (Minimum)
Weight not more than 500 g
Operating temperature range 0...+50 °C
Relative humidity no more 85%

 

pdf

Download SEL-324S-Spot---Datasheet--ENG pdf

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pdf

Download SEL-324S-Spot---Manual---ENG pdf

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Address:
Silutes pl. 2 (Office No 525, 5th floor),
Klaipeda 91111, Lithuania
Phone: +370 655 08288, +370 655 08286
Fax: +370 46 411353
E-mail: info@selcomsecurity.com

 

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