SENSOR Loud speaking Alert Systems

3.1 SENSOR Loud speaking Alert Systems

Loud speaking address systems are used in local and regional address systems that alert governmental agencies to emergency, in city and rural wire broadcast networks, are intended to cover open and enclosed areas with sound annunciation and to arrange and reconstruct corporate radio broadcast systems.

SENSOR loud speaking address system includes:

1. OPDA radio broadcast distribution amplifiers

2. Power combiners

3. SENSOR- loudspeakers

4. Control hardware


1. Radio broadcast distribution amplifiers

Specific features:

  • wide range of application: from one amplification channel to a set for up to 15kW radio rack
  • high output power: 250W to 500W
  • wide range of feeder line voltage: 30V to 240V
  • integrated control unit (option)
  • integrated auxiliary power supply system (option)
  • outdoor installation available (IP66)
  • 7 levels of accident protection
  • auxiliary line input with 6-channel equalizer
  • alarm mode

Industrial OPDA distribution amplifiers are made of world-of-the-art components by leading international makers.

Technical specifications:

250W, 450W, 500W distribution amplifiers (30V, 120V, 240V, …) to be used independently or as part of up to 15kW radio rack:

  • featuring UPS (integrated battery) – 19", 5U
  • powered by 230V 50Hz mains – 19", 2U

250W, 450W, 500W distribution amplifiers (30V, 120V, 240V, …) to be used independently, fitted with integrated control unit:

  • featuring UPS (integrated battery) – 19", 6U
  • powered by 230V 50Hz mains – 19", 2U

200W, 400W distribution amplifiers (30V, 120V) for outdoor installations with integrated control unit and UPS (integrated battery) – IP 66 cabinet.

Distribution amplifiers provide seven kinds of accident protection, auxiliary input with six-channel equalizer, alarm mode. 

2. Power combiners:

2×500W and 3×500W, 120/240 V, make – 19", 1U.

3.SENSOR horn loudspeakers:

 – 50W, 100W, 150W, 200W, (aperture 90°, 120°)

SENSOR HL horn loudspeakers are intended to transmit voice, audio, etc. from various sound sources.

Specific features:

  • High electric power (50W, 100W, 150W, 200W) and, respectively, big range
  • Wider aperture (120°) ensures surround coverage with just 3 horns (instead of four 90° horns) and lower power consumption of amplifier
  • Available 24h broadcasting at maximum capacity
  • High reliability due to improved electrical load resistance
  • Good durability due to environment-resistant materials

Both outdoor and indoor (facilities, rooms) installation is admissible. According to configuration, the devices support connection to distribution amplifiers featuring output voltage equal to 30V, 100V, 120V (basic version, others are optional). Transformerless version for 30V is available, as well (complete with certain distribution amplifiers by own make).

Technical specifications:

  • Max. power (XXX) - 50/100/150/200 W
  • Max. sound pressure - 131/134/135/138 dB
  • Rated voltage - 30/100/120 V (basic)
  • Sensitivity (sound pressure per 1W,1m,1kHz)- 114 dB
  • Frequency range (up to -14dB level) - 270-3900 Hz
  • Overall dimensions (aperture 90°) - 520*280*450 mm
  • Overall dimensions (aperture 120°) - 520*225*560 mm
  • Weight - 5 to 8 kg (depending on make)
  • Temperature range - from -50° to +50°


SCU distribution amplifier switching and control devices are intended to control distribution amplifier output switching over notification areas with current and voltage monitoring. The devices are used to control radio broadcast racks consisting of 1 to 15 distribution amplifiers. Units for 5, 10, 15 feeder lines, up to 8A each, are available. The hardware features integrated control unit in order to communicate with control equipment by any of the following channels: Ethernet, radio channel, twin lead (VF channel), directly from a PC (USB). Make – 19", 3U.

(RFLA) remote feeder line actuators (30-240 V, up to 1.5kW) are used to selectively trigger loudspeakers, groups of loudspeakers, existing radio feeder line and are controlled with a special signal supplied to a radio feeder by alarm trigger. IP66 casing for outdoor installation. Temperature range – minus 40 to 50 °C.

(RBCB) radio broadcast control board is intended to control radio broadcast hardware, fitted with switching and control device, by a twin lead up to 2 km long. The board allows to select addressed areas, remote feeder line actuation mode, alarm generation mode, broadcast source, operation control. Line, microphone and FM inputs are provided.

Radio Broadcast Control Board software (RBCB)

The software ensures PC control over radio broadcast hardware, fitted with switching and control devices, by Ethernet. The software allows to select address areas, remote feeder line actuation mode, alarm generation mode, broadcast source, operation control. Touch-screen displays are compatible.

All the equipment is certified by the Customs Union within the united economic space (EAC) and is manufactured according to ISO 9001 quality management system.

SENSOR-M, LLC is dedicated to design, supply, installation, commissioning and service of own systems and equipment.