SB-204 Automatic Bell Timer

SB-204 Automatic Bell Timer – MP3 Bell System with SD Card, Weekly Schedules & Audio Output

Model: SB-204
Category: Automatic School Bell System

The SB-204 Automatic Bell Timer is a smart and programmable audio automation device built for schools, colleges, factories, temples, and institutions seeking to eliminate manual bell ringing. This powerful timer supports SD card-based MP3 playback, enabling it to play custom bell tones, prayers, anthems, or any audio message at pre-scheduled times.

Built by SuperSync Technologies, the SB-204 combines the functionality of a school bell timer, music player, and automatic amplifier controller, all in one compact unit. It’s the perfect solution for administrators who need fully programmable daily schedules, low-maintenance operation, and reliable performance across various environments.

Technical Specifications:

• Model: SB-204

• Category: Automatic School Bell System

• Audio Output: 6.35mm jack (for amplifier connection)

• Media Format: SD card slot (up to 16GB) – stores MP3 audio files

• Scheduling: 24 individual weekly time tables

• Days: Separate schedule settings for all 7 days of the week

• Display Interface: Digital LCD with menu buttons

• Memory Backup: Retains time and schedules during power cuts

• Power Input: 220V AC

• Auto Control: Automatically switches amplifier ON/OFF during scheduled play

• Design: Compact, durable body, wall-mountable

Key Features:

• Fully Programmable Timer for all 7 days – configure bells for each weekday independently

• SD Card MP3 Playback – plays any custom tone: bell, song, prayer, or announcements

• Digital Interface – no external computer needed, all controls on the device itself

• Auto Amplifier Power Control – starts and shuts off the audio system with the bell

• Memory Backup Support – continues operation even after a power failure

• Compatible with All Sound Systems – works with SuperSync or any third-party amplifier/speaker

• Compact & Durable Build – designed for easy installation in school or industrial premises

• Plug-and-Play Design – works out of the box, no programming expertise needed

Applications:

• Schools & Colleges: Automate period bells, national anthem, morning prayers, and announcements

• Temples: Scheduled devotional bhajans or aarti music

• Factories/Industries: Shift-change horns or time-based alerts

• Residential Societies: Play security or reminder announcements at fixed times

• Offices/Institutions: Work break notifications, meetings, or message broadcasting

Output Compatibility:

• Compatible with SuperSync’s Amplifier & Speaker System

• Also works with any branded audio output setup via a 6.35mm AUX cable

• For optimal output, pair with: Amplifier with Digital Player

Ease of Use & Operation:

The SB-204 is designed with simplicity in mind. All settings can be done directly from the device using its built-in display and buttons—no need for a PC or special software. Insert your custom MP3 files into the SD card, program the schedule using the LCD interface, and let the system take over. Ideal for schools that want to add cultural music, school-specific tones, or safety messages into their bell schedule.

Built for Reliability:

Backed by SuperSync Technologies, this timer includes industrial-grade electronics, long-term memory, and an accurate RTC (Real-Time Clock). It retains all data even in power outages, ensuring you never miss a bell. The solid construction also ensures protection from daily wear and tear.

Why Choose SuperSync?

At SuperSync, we specialise in school automation, bell systems, digital amplifiers, and broadcasting systems that simplify time and safety management. We also manufacture:

• School Broadcasting System (Model: BS-101)

• Fire Talk Back System (Model: FPA-510)

• Counter Communication System (Model: CP-551)

Explore more at https://automaticschoolbell.in or https://supersynctech.com for additional products, support, and integration services.

Conclusion:

Whether you’re running a school, factory, temple, or society, the SB-204 Automatic Bell Timer delivers unmatched ease, customisation, and reliability. Play any MP3 audio, automate schedules for each day, and connect effortlessly to your amplifier and speaker system. Say goodbye to manual bell ringing—switch to SB-204 and upgrade your premises to smart automation today.