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  • AJAX | HomeSiren Jeweller Wireless Indoor Siren, 80-100 dB, White | 42809
HomeSiren Jeweller Wireless Indoor Siren, 80-100 dB, White
  • Frequency Jeweller
AJAX

HomeSiren Jeweller Wireless Indoor Siren, 80-100 dB, White

SKU AJ-42809

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An indoor siren adjustable from 80 to 100 dB at 3.3 feet, with a 6,500 foot radio range that reaches across almost any residential or small commercial site from the hub.

Built for the installer

Adjustable volume is more useful than it sounds. The same part covers a hallway in a flat where 100 dB is antisocial and a warehouse where it is barely audible, set in the app rather than by a DIP switch behind the cover. Default is 93 dB.

Alarm duration is configurable from 3 seconds to 3 minutes, which matters where local noise ordinances cap how long a siren may sound. It runs up to five years on two pre-installed CR123A cells and is classified a type W internal, self-powered warning device.

Key features

  • Volume adjustable 80 to 100 dB in the app, so one part suits a flat or a warehouse
  • Alarm duration 3 s to 3 min, which keeps it inside local noise ordinances
  • 6,500 ft radio range, the longest in the Jeweller device range
  • Up to 5 years on two pre-installed CR123A cells
  • Type W warning device, internal and self-powered, with no wiring required

System requirements

Requires an Ajax hub or range extender. Indoor use. Self-powered, so no mains connection is needed at the siren position.

Specifications

SKUAJ-42809
BrandAJAX
Radio communication rangeUp to 6,500 ft in open space, between the device and a hub or range extender
IndicationAcoustic and LED
Warning device typeType W, internal and self-powered
Alarm volume80 to 100 dB at 3.3 ft, adjustable. Default 93 dB
Alarm durationFrom 3 s to 3 min, adjustable
Siren sound frequency3.4 +/- 0.5 kHz
Additional LEDSupports connection of an additional LED at 3 V
Sabotage protectionTamper alarm on enclosure opening or removal from the mounting panel
Power input2 x CR123A, pre-installed
Battery lifeUp to 5 years
ColourWhite
Region9NA, North America model
Radio protocolJeweller, two-way encrypted wireless
Frequency band (North America)905.0-926.5 MHz, certified to UL/ULC standards
Radio modulationGFSK with frequency hopping
EncryptionBlock encryption with a dynamic key
Communication loss detectionAfter 36 seconds
Anti-spoofingDevice authentication
Warranty24 months
FrequencyJeweller

Documents and resources

FAQs

How loud is it and can that be changed?
Adjustable from 80 to 100 dB at 3.3 ft, with a 93 dB default. It is set in the Ajax app rather than by a switch behind the cover, so it can be tuned after installation.
Can the siren duration be limited?
Yes, from 3 seconds to 3 minutes. That matters where local noise ordinances cap how long an audible alarm may sound.
Does the siren need mains power?
No. It is a type W internal, self-powered warning device running on two pre-installed CR123A cells for up to 5 years, so it can be sited for effect rather than near a socket.
Does this device need an Ajax hub?
Yes. All Jeweller devices report to an Ajax hub or a range extender. The device cannot operate standalone and does not connect to a third-party panel directly.
What does the 9NA region code mean?
It is the North America model, operating on the 905.0-926.5 MHz Jeweller band certified to UL/ULC standards. European models on 868 MHz are not interchangeable with it.
How quickly is a lost device detected?
Within 36 seconds. Jeweller polls each device continuously, so a jammed, removed or failed device is reported rather than quietly going offline.
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