The 120dB 12V Alarm Horn Siren produces a continuous alarm tone at 120dB sound output, rated for 12V DC operation with low power current consumption, built from durable ABS plastic in a red and black color scheme, with 900mm wire leads. This 12v siren horn is significantly louder than small piezo buzzers covered separately — its 120dB output uses a horn-style driver mechanism designed for serious security alarm applications rather than gentle alert tones.
120db alarm buzzer 12v’s 900mm wire length is a practical installation detail — this length allows the siren unit itself to be mounted at a distance from the main control circuit, such as positioning it on an exterior wall, inside a vehicle engine bay, or at a building entrance while keeping the controlling relay or Arduino circuit safely housed elsewhere. As a dc 12v wired mini horn siren, the continuous tone output (rather than a pulsed or warbling pattern) gives a steady, attention-grabbing alarm sound.
this 12v siren alarm’s 120dB output is loud enough to require careful placement away from prolonged close-range human exposure, since sustained loud sounds at this level can cause discomfort or hearing strain. This StemVolt siren is well-suited for engineers building dedicated security alarm systems and practical building or vehicle protection electronics projects.
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Features:
- 120dB loud continuous tone for serious security alarm applications
- 900mm wire leads allow remote mounting away from control circuit
- Durable ABS plastic casing withstands outdoor and vehicle installation
- Low power current consumption suits 12V battery-based systems
- 12V DC compatible with standard automotive and security power supplies
Technical specifications:
Applications:
- Alarm Horn used for Arduino home security siren trigger build
- College project uses 12v siren horn for security system demo
- Vehicle uses 120db alarm buzzer 12v for India car anti-theft alarm
- Building entrance uses dc 12v wired mini horn siren for intrusion alert
- Industrial site uses 12v siren alarm for emergency evacuation signal
Package includes:
- 1 x 120dB 12V Alarm Horn Siren
Riya Joshi –
Siren for security system project delivers loud and clear alarm output, making it ideal for security systems, college projects, automation setups, and safety alert applications
Madhavan Banerjee –
Suitable for alarm systems, warning applications, and electronics projects requiring a high-volume 12V siren with reliable performance.
Advait Patel –
Original product received
Ritika Nair –
Safe packaging and smooth UPI payment ensured a hassle-free purchasing experience, while Pan India delivery made it convenient for project builders and students
Rishabh Mishra –
Fast delivery service
Tejas Rao –
Best kit ever bought