Wall Mount Electronic Hooter Cum Sounder AGNI- 403 | Sheet Metal Fire Alarm Sounder

High Performance wall mount electronic hooter cum sounder for conventional fire alarm systems. Built with a rugged sheet metal enclosure, operating on 24V DC, delivering 85-95 dB audible alerts with IS 2189 and EN 54-5-7 compliance for reliable emergency evacuation.

Part Number: AGNI-403 | Category: Hooter/Hooter Flasher/Hooter cum Speaker

Tags: conventional fire alarm accessory, Electronic Sounder, Fire Alarm Hooter, Fire alarm sounder, Metal enclosure hooter

User Manual

Data Sheet

Certification

Description

AGNI- 403 Wall Mount Electronic Hooter Cum Sounder is a professional-grade audible notification device designed for conventional fire alarm systems. Upon fire detection, the control panel activates the hooter to emit a powerful pulsing alarm tone, ensuring immediate occupant alerting and safe evacuation.

This device produces a high-output sound pressure level of 85 to 95 dB at 1 meter, making it ideal for commercial, industrial, and residential buildings where clear emergency signaling is critical.

Powered through 24V DC Notification Application Circuits (NAC), it supports synchronized alarm operation and reliable system supervision. The alarm features a 520 Hz sound frequency with a pulsing pattern of 0.30 seconds ON / 0.30 seconds OFF, delivering a sharp and unmistakable emergency alert.

The enclosure is fabricated from 1.2 or 1.6 SWG solid sheet metal profile, offering durability and long service life in indoor environments. The standard red finish enhances visibility during emergencies while the wall-mount design allows quick and easy installation without structural modification.

The AGNI-403 complies with major safety standards including IS 2189, EN 54-5-7, NBC, and Government of India CPWD DSR specifications, making it a dependable solution for modern fire protection systems.

How it Works

How does the Agni 403 Electronic Hooter Cum Sounder Work?

The AGNI-403 electronic hooter cum sounder works by receiving 24V DC power from a fire alarm control panel through a notification Application Circuit (NAC).
When a fire is detected, the panel activates the circuit and the hooter produces a loud pulsing alarm tone to alert occupants for evacuation.

Commonly Used

Commercial Buildings
Industrial Facilities
Hospitals & Institutions
Residential Complexes
Government & Infrastructure Projects

Step-by-Step Electronic Hooter Cum Sounder Working Principle?

01

Fire Detection Occurs

A smoke detector, heat detector, or manual call point senses danger and sends a signal to the fire alarm panel.

02

Power is supplied

The control panel sends 24V DC (±6%) to the hooter through the NAC circuit.

03

Alarm sound is generated

The hooter produces: Sound Frequency of 520 Hz (±10%), Sound pattern is 0.30 sec ON / 0.30 sec OFF pulsing wave tone, Sound Level is 85-95 dB at 1 meter

04

Sound spreads across the area

With a dispersion of 120° horizontal and 40° vertical, the alarm reaches occupants quickly.

05

People Evacuate safely

The loud, recognizable tone supports fast response and evacuation in line with fire safety standards.

Technical Specification

PARAMETER	Specification
Part Number	AGNI-403
Product Type	Wall Mount Electronic Hooter Cum Sounder
Operating Voltage	24V DC (±6%)
Maximum Current	195 mA
Sound Output Level	85 to 95 dB SPL @ 1 meter
Sound Frequency	520 Hz Signal (±10%)
Sound Pattern	0.30 sec ON / 0.30 sec OFF Pulsing Wave Tone
Nominal Dispersion	120° (H) × 40° (V)
Long-Term Power Handling	8Ω, 4W (5W peak)
Enclosure Material	1.2 or 1.6 SWG Solid Sheet Metal Profile
Body Color	Standard Red
Dimensions (H × W × D)	186 mm × 137 mm × 70.53 mm
Net Weight	1100 g
Shipping Weight	1150 g
Maximum Humidity	95% RH
Operating Temprature	-2°C to +87°C
Protection rating	Type A - Indoor Use / IP21C
Terminal Block	Screw Type
Order Reference	AGNI-409 Wall Mount Speaker Cum Hooter
Standards Compliance	IS 2189, EN 54-5-7, NBC, CPWD DSR

Guidelines: Conforms with ( IS 2189 / EN 54-5-7 / NBC) For Hooter Unit With Or Without Strobe / Audio / Alarm / Visual / Combination Devices It Should Be Mounted With The Top Of The Unit Between 80 And 96 Inches ( Ideally. 2.0 To 2.4 Meters 2200 Or 2400) Above The Floor, And Not More Than 4 Inches From The Ceiling.

Job to be Done

Primary Job

Convert fire detection signals from the alarm Through the control panel into , Device pulsing audible alarm that immediately alerts building occupants and initiates fast, organized evacuation during emergency situations.

Safety Job

Ensure life safety by delivering a high-audibility 85 to 95 decibel alarm signal across indoor spaces, helping people recognize danger quickly and respond according to evacuation procedures.

Functional Jobs

Operate reliably on 24V DC Notification Appliance Circuits to generate a synchronized pulsing 520 Hz sound output, providing consistent emergency alerting within conventional fire alarm systems.

FAQ

What is an electronic hooter cum sounder used for in fire alarm systems?

An electronic hooter cum sounder is used to produce a loud audible alarm when a fire is detected, alerting occupants instantly and helping ensure fast evacuation in commercial, industrial, and residential buildings.

How does a wall mount fire alarm hooter work?

A wall mount fire alarm hooter works by receiving 24V DC power from the fire alarm control panel through a notification circuit, then generating a pulsing high-volume sound to warn occupants of danger.

Where should a wall mount fire alarm sounder be installed?

A wall mount fire alarm sounder should be installed in hallways, staircases, corridors, factory floors, office areas, and common spaces where sound can spread freely for maximum audible coverage.

Are electronic hooters mandatory in fire alarm systems?

Most fire safety codes require audible notification devices like electronic hooters or sounders to alert occupants during emergencies, making them essential components of compliant fire alarm systems.

Why are audible fire alarm devices critical for building safety?

Audible fire alarm devices are critical because they convert fire detection into immediate human awareness, ensuring people recognize emergencies quickly, evacuate safely, and reduce injury or property loss.