Car Alarm Sirens

Car alarm sirens

The siren is the part that does the work. Sensors decide something is wrong, but the siren is what makes the thief leave and what makes anyone nearby look over. It's also the part most likely to need replacing, because it lives in the engine bay through salt, heat and damp.

Replacing a failed siren

If your alarm arms and disarms normally but no longer makes noise, the siren is the usual culprit rather than the system. They're inexpensive and any of these will work with most aftermarket alarms.

Adding a second siren

Worth doing, and cheap. The main siren under the hood is what alerts people outside the vehicle. A small piezo siren mounted inside the cabin does a different job: it makes staying in the car genuinely unpleasant, which shortens how long a thief is willing to work.

Battery backup

Disconnecting the battery is the standard way to silence an alarm. A backup siren carries its own power source and keeps sounding regardless, which turns a quick job into one nobody wants to be seen doing.

Multi-tone matters

A siren that cycles through different tones is much harder to tune out than one continuous note. Most of ours are six-tone for exactly that reason.

Not sure what fits your system?

Call us on 647-439-4485 with the make and model of your alarm. See also our tilt sensors and the rest of our accessories.

Shop the range

4 products

  • Compustar FT-SIREN-6T Six Tone Siren for vehicle security with professional installation, support, and fast shipping by Connected Car Experts

    Compustar FT-SIREN-6T Six Tone Siren

    Regular price $22.00 CAD
    Sale price $22.00 CAD Regular price
  • MPS-110 Mini Piezo Siren - Lockdown Security

    MPS-110 Mini Piezo Siren

    Regular price $14.99 CAD
    Sale price $14.99 CAD Regular price
  • Voxx MBS Battery Backup Siren vehicle anti-theft system with professional installation technical support fast shipping Connected Car Experts

    Voxx MBS Battery Backup Siren

    Regular price $44.99 CAD
    Sale price $44.99 CAD Regular price
  • Directed Electronics DS4WS Bluetooth Siren with Voice | Built-in Shock/Tilt Sensor - Lockdown Security

    Directed Electronics DS4WS Bluetooth Siren with Voice | Built-in Shock/Tilt Sensor

    Regular price $139.99 CAD
    Sale price $139.99 CAD Regular price

Buying guide

Car alarm sirens

The siren is the part that does the work. Sensors decide something is wrong, but the siren is what makes the thief leave and what makes anyone nearby look over. It's also the part most likely to need replacing, because it lives in the engine bay through salt, heat and damp.

Replacing a failed siren

If your alarm arms and disarms normally but no longer makes noise, the siren is the usual culprit rather than the system. They're inexpensive and any of these will work with most aftermarket alarms.

Adding a second siren

Worth doing, and cheap. The main siren under the hood is what alerts people outside the vehicle. A small piezo siren mounted inside the cabin does a different job: it makes staying in the car genuinely unpleasant, which shortens how long a thief is willing to work.

Battery backup

Disconnecting the battery is the standard way to silence an alarm. A backup siren carries its own power source and keeps sounding regardless, which turns a quick job into one nobody wants to be seen doing.

Multi-tone matters

A siren that cycles through different tones is much harder to tune out than one continuous note. Most of ours are six-tone for exactly that reason.

Not sure what fits your system?

Call us on 647-439-4485 with the make and model of your alarm. See also our tilt sensors and the rest of our accessories.

Looking for something else?

Browse every remote starter accessory, from key fob kits and smartphone controllers to relays, switches and install supplies. Or have us fit it: we install remote starters, alarms and their accessories at our Markham shop.

Common questions

Will it work with my system?

Usually, but check the product page. Some parts work with almost any remote starter or alarm, and some are made for specific control modules. Each product page lists what it works with. Not sure what you have? Text us a photo of the module and we'll tell you.

Can you install it for me?

Yes. We install remote starters, alarms and their accessories at our Markham shop, and every install is backed by our lifetime installation warranty. Book an installation.

Do you ship across Canada?

Yes. Shipping is free on orders over $200.

Not sure what you need?

Tell us what you're installing and on what vehicle, and we'll point you at the right part.