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Operating principle

StreetSiren responds to alarms and tampers triggering by activating the buzzer and LED frame in less than a second. The tamper button triggers when the enclosure is opened or broken, and the accelerometer triggers when somebody’s attempting to move or dismantle the siren.



The buzzer can be set to generate sound from 85 to 113 dB for an adjustable period from 3 seconds to 3 minutes, or it can be completely silent and respond only with LED indication. StreetSiren’s hermetically sealed body has been rated IP54 level of ingress protection.



Technical specifications


Siren with light alarms

Type of siren


Installation method

Indoors and outdoors


All Ajax hubs and radio signal range extenders

Type of notification

Acoustic and LED

Alarm volume

From 85 to 113 dB at a distance of 1 m
Adjusted in the Ajax app

Alarm duration

From 3 s to 3 min
Adjusted in the Ajax app

Indication of arming mode


Indication of entry/exit delays

With firmware version 3.50 and higher

Learn more


With firmware version and higher

Learn more

Power supply

Batteries 4 × CR123A, 3 V
Up to 5 years of battery life

External power supply
12 V⎓, 1.5 A

Jeweller communication technology

Frequency bands
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
depends on the region of sales

Maximum effective radiated power (ERP)
≤ 20 mW

Radio signal modulation

Communication range
up to 1,500 m in an open space

Polling interval
12–300 s
Adjusted by PRO or user with system configuration rights

Learn more

Operating temperature range

From -25°С to +50°С

Operating humidity

Up to 95%

Protection class



Protection against forgery
Jamming detection
Tamper against enclosure opening
Accelerometer against detachment


200 × 200 × 51 mm


528 g



Wireless Scaffold Siren & Strobe (HIRE)

Excluding VAT
Price Options
Weekly Hire
£6.00every week until canceled
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