GSM Remote Siren Control — Activate Sirens via SMS from Anywhere, No Internet Needed
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GSM / SMS Remote Control

Trigger Your Siren
From Any Phone. Anywhere.

No internet. No LAN cable. No app to install. Send an SMS, your remote siren fires — even at a site with no network infrastructure at all. Built for pump stations, remote yards, and unmanned facilities.

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SMS
Activation Method
0
Internet Needed
Any
Mobile Number
SMS Activation Flow
GSM Remote Siren — How It Works Authorised mobile SMS "START" GSM Module Verifies sender Motor Siren Activates GSM / 2G / 3G network
GSM remote siren control system — SMS triggered siren activation from any mobile phone, factory emergency alert, India
Trigger
SMS from authorised mobile
Auth numbers
Up to 10 numbers
Response
Under 10 seconds
Network
2G GSM — any Indian operator
Output
Relay contact for siren load
Backup
Battery backup included
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Sound your factory siren from anywhere in India

One SMS. Under 10 seconds. Any authorised mobile.

At 2 AM when there is a fire at your plant, your plant manager is at home and your security guard is at the gate. The time it takes for the guard to reach the siren panel and sound the alarm could be the difference between a contained incident and a catastrophe.

With the GSM Siren Control System, your plant manager sends one SMS from their mobile — and the siren sounds at the plant within 10 seconds. No app. No internet. Any mobile phone. Any Indian network.

Is this right for your site?

✓
Off-hours emergency responseThe most critical need — when a responsible person is off-site and needs to trigger an emergency alert immediately, without relying on on-site staff to do it correctly and promptly.
✓
Unmanned or remotely monitored sitesRemote pump stations, water treatment plants, compressor stations, telecom towers, substations — facilities monitored remotely where on-site activation is not possible.
✓
Backup to automatic controllerIf your scheduled controller fails to activate the siren for any reason, the GSM module provides an independent backup trigger that any authorised person can use.
✓
Multi-site simultaneous activationSend one command and activate sirens at multiple factories simultaneously — useful for industrial estates and group companies with shared emergency response plans.
1

Send SMS command

Text "ALARM ON" (or your configured command word) from your registered mobile to the SIM number in the controller.

2

Identity verification

The module checks the sender number against up to 10 authorised numbers. Unknown numbers are ignored entirely.

3

Relay activates siren

Verified command triggers the output relay — activating your motor siren, electronic siren, or hooter with the pre-configured tone and duration.

4

Confirmation SMS returned

The controller replies "SIREN ACTIVATED" to the sender — confirming the siren has sounded.

5

Remote deactivation

Send "ALARM OFF" to stop the siren early, or the siren auto-stops after the pre-set duration.

ParameterSpecification
Trigger methodSMS command from authorised mobile
Authorised numbersUp to 10 numbers
NetworkAny 2G GSM — Airtel, Jio, Vi, BSNL
Response timeUnder 10 seconds from SMS send to relay close
Backup triggerHardwired push button (local manual override)
NotificationConfirmation SMS to triggering number
Output relayN.O. dry contact, 5A 230V AC
Battery backupYes — for controller and GSM module
SIM cardStandard 2G SIM — not supplied (₹50–100/month)

↕ Scroll down to see full specification table on desktop

Buyers ask us

What if the mobile network fails at the site?
The GSM module also has a hardwired push button input — local manual activation always works regardless of network status. We recommend GSM as a secondary or remote trigger, always paired with a local manual activation option.
Can the same command trigger sirens at multiple sites?
Each GSM module is a separate unit with its own SIM. To activate multiple sites simultaneously, you send to multiple numbers — or we configure all modules to accept commands from the same authorised list. A group broadcast is also possible via automated SMS gateway.
What if an unauthorised person sends the command?
The controller ignores any SMS from a number not in the authorised list — completely. It does not respond, does not activate, and does not send a reply. There is no way for an unknown number to trigger the siren.
What if the SIM runs out of credit?
The module cannot receive or send SMS without active credit. We recommend auto-recharge or a minimum balance alert on the SIM. At least ₹50 balance is sufficient for months of use (SMS-only, no data).
Can I receive a notification when someone else triggers the siren?
Yes. The module can be configured to send notification SMS to multiple numbers on any activation — whether triggered by SMS command, local push button, or the automatic controller relay. Up to 5 notification numbers.

You might also need

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Automatic Factory Siren — Scheduled RTC Controller
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Motor Siren — The Siren the GSM System Controls
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Unified Siren Control System — Multi-Site Distributed Control
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Need remote siren control?

Share your site location, network, and number of authorised users. We confirm the right configuration.

Get Quote →
Also see: Automatic Factory Siren →Motor Siren →Unified Control System →
📄 SMS command list, wiring diagram & SIM requirements →
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