Ajax Systems
Ajax HomeSiren Jeweller White – 100 dB Indoor Wireless Siren with LED and Tamper Protection – 38111.11.WH1
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Ajax HomeSiren Jeweller is an indoor wireless siren designed to promptly signal alarms from the Ajax security system. Thanks to Jeweller two-way radio technology, adjustable sound output of up to 100 dB, and an LED indicator, it offers a compact and reliable solution for protecting homes, offices, and commercial premises.
The siren responds to security system alarms and tampering attempts in less than a second. The volume is adjustable from 80 to 100 dB, while the sound signal duration can be configured from 3 to 180 seconds directly from the Ajax app.
The Chime function allows you to receive an audible signal when doors are opened while the system is disarmed. HomeSiren can also indicate the system's arming status and signal entry and exit delays.
The Jeweller radio protocol ensures encrypted two-way communications with a range of up to 2,000 metres in open field. The two pre-installed CR123A batteries ensure a stated battery life of up to 5 years.
The compact design, SmartBracket mount, and QR code configuration allow for easy installation. A connector for a 3 V external LED indicator is also available.
Attention: an Ajax hub is required for operation and is sold separately.
Main features
- Indoor wireless siren: audible and LED alarm notification.
- Adjustable sound output: from 80 to 100 dB at 1 metre.
- Configurable alarm duration: from 3 to 180 seconds.
- Jeweller technology: encrypted two-way radio communication.
- Radio range: up to 2,000 metres in open field.
- Chime function: audible notification of door opening when the system is disarmed.
- LED indicator: security status display and option to connect an external LED.
- Tamper protection: tamper alarm and device authentication.
- Battery life: up to 5 years with 2 pre-installed CR123A batteries.
- Remote management: configuration and control via the Ajax app.
- Quick installation: SmartBracket mount and QR code pairing.
- Colour: white.
Technical specifications
| General information | |
|---|---|
| Brand | Ajax Systems |
| Model | HomeSiren Jeweller |
| Product code | 38111.11.WH1 |
| Type | Indoor wireless siren |
| Colour | White |
| Compatibility | All Ajax hubs and Ajax radio signal repeaters |
| Notification and functions | |
| Notification type | Audible and LED |
| Alarm volume | From 80 to 100 dB at 1 m |
| Alarm duration | From 3 to 180 seconds |
| Sound frequency | 3.4 ± 0.5 kHz |
| System status indicator | LED and audible entry/exit notifications |
| Chime function | Yes, door opening notification |
| Tamper protection | Tamper and device authentication |
| External LED connector | Yes, 3 V |
| Configuration | Via the Ajax app |
| Radio communication | |
| Protocol | Jeweller, two-way and encrypted |
| Radio frequencies | 866.0–866.5 MHz; 868.0–868.6 MHz; 868.7–869.2 MHz; 905.0–926.5 MHz; 915.85–926.5 MHz; 921.0–922.0 MHz, depending on the region |
| Maximum radiated power (ERP) | ≤ 20 mW |
| Communication range | Up to 2,000 m in open field |
| Polling interval | From 12 to 300 seconds, configurable |
| Communication security | Encryption and authentication |
| Power supply | |
| Batteries | 2 × CR123A, pre-installed |
| Battery life | Up to 5 years |
| Dimensions and environmental conditions | |
| Dimensions | 75 × 76 × 27 mm |
| Weight | 97 g |
| Operating temperature | From -10 °C to +40 °C |
| Operating humidity | Up to 75% |
| Installation | Indoor, with SmartBracket mount |
| Declared standards | |
| Standards | EN 50131 (Grade 2), PD 6662:2017, SIA CP-01, UL985, UL1023, UL2610, ULC S545, ULC S304 |
Package contents
- 1 × Ajax HomeSiren Jeweller White
- 2 × Pre-installed CR123A batteries
- 1 × SmartBracket mounting panel
- 1 × Connector for external LED indicator
- 1 × Installation kit
- 1 × Quick start guide
Note: an Ajax hub is required for operation and is not listed among the included accessories. Actual radio range and battery life depend on installation and usage conditions.