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The Ajax HomeSiren is a wireless indoor siren that produces a loud audible alarm when any detector in your Ajax system is triggered. Designed for indoor installation, it provides an unmistakable alert within your premises, ensuring occupants are immediately aware of a security event. Its compact design allows discreet placement near entry points or central areas of your home or office.
| Alarm length | 3−180s |
| Alarm Signal Delivery Time | 0.15 |
| Battery life | 5 Years |
| Detection Range | 2000 m |
| Dimensions | 75 х 76 х 27 mm |
| Indication of armed/disarmed status | Yes |
| Plug & Play | Yes |
| Power Supply | 3 V |
| Siren Type | Indoor |
| Sound volume level | Adjustable; 81−105 dB at a distance of 1 m |
| Wireless Operation | Yes |
| Operating Temp (Min) | -10 °C |
| Operating Temp (Max) | 40 °C |
| Warranty | 2 years |
| MPN | 38110.11.BL1 |
| Model number | SD420 |