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Delivered between 28.1.2026 and 17.2.2026
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Product details

The Ajax Systems Indoor Siren is an effective security device specifically designed for indoor use. It serves as an acoustic alarm and is an essential component of a comprehensive alarm system. With its compact design and easy installation, it is ideal for residential and commercial spaces. The siren is powered by two CR123A batteries, ensuring a reliable power supply. Its modern black design seamlessly integrates into various interior styles. Compatibility with smart home systems allows for easy integration into existing security solutions, making the monitoring and control of alarms even more efficient. This siren is not only an effective means of burglary prevention but also an important element for a safe living or working environment.

  • Operates with two CR123A batteries for reliable power supply
  • Compatible with smart home systems for easy integration
  • Compact and discreet design for indoor use
  • Effective acoustic alarm function for burglary prevention.

Key specifications

Transmission type
Wireless
Burglary protection type
Siren
Burglary protection category
Alarm System
Item number
35749581

General information

Manufacturer
Ajax Systems
Category
Burglary protection + Alarm systems
Manufacturer no.
HOME SIREN CZARNY #38110.11.BL1
Release date
22.5.2023

Colour

Colour
Black
Exact colour description
Black

Burglary protection properties

Burglary protection category
Alarm System
Burglary protection type
Siren
Protection type (IP code)
IP50
Sound level (standby)
105 dB
Application range
Indoor

Smart home features

Smart Home
Compatible
Requires Smart Home Hub
Yes
Transmission type
Wireless

Voluntary climate contribution

CO₂-Emission
Climate contribution

Power supply

Power supply
Battery operated

Product dimensions

Length
75 mm
Width
76 mm
Height
27 mm
Diameter
75 mm
Weight
97 g

30-day right of return
24 Months Warranty (Bring-in)
1 additional offer

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Burglary protection + Alarm systems» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Ajax Systems
    Not enough data
  • 1.Bearware
    0 %
  • 1.GAH
    0 %
  • 1.HP Autozubehör
    0 %
  • 1.KH Security
    0 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Ajax Systems
    Not enough data
  • 1.Abus
    0 days
  • 1.Aqara
    0 days
  • 1.Eve
    0 days
  • 1.Shelly
    0 days

Return rate

How often is a product of this brand in the «Burglary protection + Alarm systems» category returned?

Source: Digitec Galaxus
  • Ajax Systems
    Not enough data
  • 1.Sensative
    0 %
  • 2.CSL
    0.8 %
  • 3.Werkstein
    0.9 %
  • 4.Shelly
    1 %
Source: Digitec Galaxus