Built-in suppressor of voice recorders and microphones SEL-324S "Spot"

SEL-324S "Spot" is a powerful and effective device for suppressing microphones in voice recorders, mobile phones and other audio recording devices by emitting complex structured interference in the ultrasonic range, inaudible to the human ear, but affecting the microphone membrane with its sound pressure directly.

Advantages and distinctive features of the SEL-324S "Spot":

Structurally, the SEL-324S "Spot" suppressor with 24 ultrasonic emitters is designed as an LED lamp with a diameter of 120 mm and a thickness of only 40 mm, easily mounted in suspended ceilings.

Due to the ceiling location of the emitters and the resulting effect of multiple reflections of ultrasonic interference from interior items, the area and efficiency of suppression of microphones and other audio recording devices brought into the room increases.

The microprocessor control system, automatic continuous self-diagnostics of each ultrasonic channel maintain a constant highest level of ultrasonic interference power throughout the entire operating time, ensuring high reliability of the product and ease of use.

The SEL-324S "Spot" suppressor turns on automatically when power is supplied (+12V) or can be controlled remotely using a radio key fob.

Specifications

Range of generated ultrasonic interference 24 - 26 kHz
Number of ultrasonic signal emitters (USE) 24
Microphone suppression directionality perpendicular to the UES plane
Number of LED light sources 24
On/off when power is supplied (optional wireless remote control)
Maximum installation height for effective suppression 4 m
Power supply +12 V
Continuous operation time is not limited
Mounting installation dimensions (minimum) D 127 x 40 mm
Weight no more than 500 g
Housing material ceramics
Operating temperature range from 0 to +50 °C
The basic delivery set of the SEL-324S "Spot" voice recorder and microphone suppressor includes:
1. SEL-324S "Spot" product.
2. Power supply +12 V; 2A;
3. Operating instructions and passport for SEL-324S "Spot".
4. Packaging cardboard box.

Optional:
Wireless remote control system with radio key fob.