The 120dB 12V Alarm Horn Siren produces a continuous alarm tone at 120dB when connected to a 12V DC supply. At 120dB this is as loud as a chainsaw at close range, making it impossible to ignore in any indoor or semi-outdoor environment. The 12v siren horn comes with a 900mm wire pre-attached, long enough to route from a control panel to a wall or ceiling mount point.
The 120db alarm horn draws low power during operation, so it runs directly from a relay output without needing a separate driver circuit. A non-obvious detail is that is measured at a standardised test distance, typically one metre. At greater distances the perceived loudness drops significantly, so mount it in an open area for maximum coverage. The ABS plastic body handles general indoor conditions but is not rated for outdoor weather exposure.
Students building security systems and small automation engineers use the dc 12v wired mini horn siren with relay modules controlled by Arduino IDE or MicroPython. StemVolt ships this siren ready to wire into any 12V relay circuit immediately.
Related Products:
- Checkout ISD1820 Voice Audio Recording module
Features:
- Rated voltage of 12V DC connects directly to standard relay output circuits
- Sound output of 120dB produces an alarm level that cannot be missed indoors
- Wire length of 900mm allows flexible routing from relay to mounting position
Technical specifications:
| Specification | Details |
|---|---|
| Rated Voltage | 12V DC |
| Sound Output Level | 120dB |
| Sound Type | Continuous alarm tone |
| Current Consumption | Low power usage |
| Wire Length (mm) | 900 |
| Material | ABS plastic |
| Color | Red & Black |
Applications:
- Water overflow protection circuit fires the 12v siren alarm when float switch activates the relay
- Industrial machine fault alert triggers the 120dB siren when a safety sensor reads out of range
- Fire detection panel uses continuous alarm tone to alert building occupants on smoke sensor trigger
Package includes:
- 1 x 120dB 12V Alarm Horn Siren
Reviews
Clear filtersThere are no reviews yet.