The Ajax "HomeSiren" is a wireless indoor siren with an adjustable volume of up to 97 dBA and integrates into the alarm system via the protected "Jeweller" protocol. An external LED connection allows for the addition of a visual alarm device. Two-way communication with the Ajax alarm control panel enables regular self-tests. Lithium batteries ensure a reliable and long-lasting power supply for the Ajax wireless indoor siren.

Protection against manipulation and errors

• The housing of the wireless indoor siren is protected against sabotage.
• Encrypted radio transmission
• Identification and prevention of jamming
• Siren presence monitoring adjustable (12-300 s)

High reliability

• High energy efficiency through self-regulation of transmission power (depending on distance to the hub)
• Two-way communication with the central unit allows for uncomplicated test mode and system adjustment.
• External LED connector

Smooth operation

• Bidirectional radio communication
• Power supply: Battery operation (Lithium)
• Up to 5 years battery life
• Battery level can be checked at any time
• LED status indicator (Armed - Disarmed - Alarm)

• Dimensions (HxWxD): 75 x 75 x 27 mm
• Alarm signal: acoustic (external LED connection possible)
• Application: Indoor
• Battery life: up to 5 years
• Operating voltage: 3 V
• Operating temperature: 0 °C to +40 °C
• Color: white or black
• Radio signal power: 20 mW
• Radio protocol: Jeweler (868MHz)
• Communication: wireless
• Volume level: 85 to 97 dB at 1.0 m distance (adjustable)
• Max. humidity: up to 75%
• Tamper protection: yes
• Protection class: IP50
• Power supply: 2x CR123A lithium batteries

• HomeSiren
• 2x CR123A batteries (pre-installed)
• Mounting kit
• Quick guide