Ajax HomeSiren White
Ajax HomeSiren White – wireless indoor siren with adjustable volume
Ajax HomeSiren Jeweller is a wireless indoor siren that provides clear audible and visual signals when an alarm is triggered. The sound level can be adjusted from 80 to 100 dB at a distance of 1 metre, and the alarm duration can be set from 3 seconds to 3 minutes. This allows the siren to be adapted to environments ranging from an apartment to a larger commercial space.
HomeSiren has a 3 V connection for an external LED indicator, allowing system status to be shown somewhere other than the siren's installation point. Communication uses Ajax's encrypted Jeweller radio protocol with a range of up to 2,000 metres in open space.
Benefits
- Adjustable sound level of 80–100 dB at 1 metre, with 93 dB as the default setting
- Alarm duration adjustable from 3 seconds to 3 minutes
- Built-in LED indication and a 3 V connection for an external LED
- Jeweller radio range up to 2,000 metres in open space
- Estimated battery life up to 5 years from two pre-installed CR123A batteries
- Chime function that emits a short sound when a door opens while the system is disarmed
Powerful alarm signal
HomeSiren is designed to alert people nearby quickly when an alarm is triggered. It is classified as a type W warning device under EN 50131.
The siren can be used for:
- Intruder alarms
- Panic alarms
- Fire warnings
- Automation events
- Technical alarms
The high sound level helps deter intruders while immediately alerting people in the building.
Adjustable volume
The sound level can be adapted to the installation environment.
Adjustable sound pressure:
- 80 dB to 100 dB at a distance of 1 metre
- Default setting: 93 dB at 1 metre
- Siren sound frequency: 3.4 ± 0.5 kHz
This makes the siren suitable for both smaller homes and larger premises or offices.
Adjustable alarm duration
The alarm duration can be configured for the requirements of the installation.
Setting range:
- 3 seconds to 3 minutes
This provides substantial flexibility when configuring the security system.
Visual status indication
HomeSiren has built-in LED indication showing the system status. For additional visibility, a 3 V external LED can be connected and positioned somewhere more visible than the siren.
The LED indication can show:
- System armed
- System disarmed
- Alarm events
- System status
Long range and secure communication
Communication uses Ajax Jeweller technology, which provides a high level of security and operational reliability.
This provides:
- Range up to 2,000 metres in open space
- Encrypted two-way communication using block encryption and a dynamic key
- Frequency hopping to protect against interference and jamming
- Device authentication to protect against spoofing
- Detection of lost communication after 36 seconds
The long range also makes HomeSiren suitable for larger properties.
Up to five years of battery life
HomeSiren is designed for low energy consumption and minimal maintenance.
This provides:
- Estimated battery life up to 5 years
- Two pre-installed CR123A batteries with a combined capacity of 3,200 mAh
- Automatic battery monitoring in the Ajax app
The system provides a notification when the batteries need replacing.
Simple installation
The wireless design makes installation quick and flexible.
HomeSiren is suitable for:
- Houses
- Apartments
- Offices
- Shops
- Warehouses
- Holiday homes
Installation requires no cabling, and configuration is performed directly in the Ajax app.
Important to know
- HomeSiren is intended for indoor use. Its enclosure rating is IP50 and permitted humidity is up to 75%.
- The approved operating temperature is −10 °C to +40 °C.
- An outdoor-rated siren, such as Ajax StreetSiren, is required for façade installation or an unheated outdoor space.
Compatibility
HomeSiren Jeweller is compatible with:
- Ajax Hub
- Ajax Hub Plus
- Ajax Hub 2
- Ajax Hub 2 Plus
- Ajax Hub Hybrid
- Ajax ReX
- Ajax ReX 2
Technical specifications
| Product type | Wireless indoor siren with LED connection |
| Brand | Ajax Systems |
| Model / item number | HomeSiren Jeweller / 38111.11.WH1 |
| Colour | White |
| Alarm type | Audible signal and LED indication |
| Warning-device type | Type W |
| Sound level | 80–100 dB at 1 m, adjustable (93 dB default) |
| Sound frequency | 3.4 ± 0.5 kHz |
| Alarm duration | 3 seconds to 3 minutes |
| External LED connection | Yes, 3 V |
| Chime function | Yes |
| Radio protocol | Jeweller, GFSK, ERP up to 25 mW |
| Radio range | Up to 2,000 m in open space |
| Tamper protection | Tamper alarm on removal, device authentication, communication loss detected after 36 s |
| Battery type | 2 × CR123A, combined capacity 3,200 mAh (pre-installed) |
| Battery life | Estimated up to 5 years |
| Dimensions (H × W × D) | 75 × 76 × 27 mm |
| Weight | 97 g |
| Operating temperature | −10 °C to +40 °C |
| Humidity | Up to 75% |
| Enclosure rating | IP50 |
| Certifications and standards | EN 50131 series, security grade 2 |
| Warranty | 24 months |
Complete the system with
- Ajax Hub 2 Plus—hub controlling the siren and alarm transmission
- Ajax DoorProtect Jeweller—magnetic contact that can trigger the chime when a door opens
- Ajax MotionProtect Jeweller—motion detector for indoor volumetric protection
- Spare CR123A batteries for future replacement
- Installation and volume configuration by PC & HiFi Örebro
Why choose Ajax HomeSiren
- The volume can be adjusted between 80 and 100 dB, allowing the same siren to suit both an apartment and a warehouse
- The alarm duration can be set from 3 seconds to 3 minutes according to the installation requirements
- The external LED connection allows system status to be shown where it is most visible
- Up to 5 years of battery life and completely wireless installation allow quick deployment without cabling
PC & HiFi Örebro recommends
HomeSiren is suitable when an audible alarm indication is required inside a home or commercial space, preferably combined with an outdoor siren on the façade. Its main advantage is that the volume and alarm duration can be fine-tuned, which is valuable in apartments and offices where full volume would be unnecessarily intrusive. Choose an outdoor-rated siren for outdoor or unheated locations, as HomeSiren's IP50 enclosure and −10 °C to +40 °C operating range are intended for indoor environments.