StreetSiren

Ajax StreetSiren wireless siren – What is an alarm siren

The principle of operation of the alarm siren is to alert with a light or sound of an alarm. The alarm control unit sends a notification, after which the siren is activated.

Sirens, the signal of which is triggered in the form of a sound, are called sound sirens. Alarm devices including both sound and light — light and sound sirens. Sound alerts come in different tones, with power of up to 110 dB (pulsating or continuous). The light alert may look like a flashing light.

The purpose of the siren is internal and external. The external siren works in a wide temperature range and its body is protected from moisture and is more robust than internal.  The place of attachment depends on the type of installation of the siren — external detectors must be mounted in places that are protected from any weather conditions (snow, rain, icing).

The optimal power of the device depends on the place of installation of the siren for the security alarm system (indoors or outdoors) — the siren with a power up to 100 dB is used indoors. On the street, an important role is played by the distance at which the sound of the detector and the presence of extraneous noise (for example, cars) should be heard, so the external security siren should emit a sound of 100-120 dB.

Sirens for burglar alarms are equipped with a tamper — a device that is activated when the case is opened or the siren is removed from the wall and thus protects the detector from intruders.

Types of alarm street sirens

There are three types of sirens:

• Wired — with connection to the control panel by cable.
• Wireless — with connection to the radio control unit. Most often have an autonomous power supply in the form of a battery (and therefore mobile — can be reinstalled elsewhere).
• Autonomous — have an autonomous power supply and can be additionally equipped with solar panels for charging during the day. Sensors in such a siren can be built-in and different in purpose — motion sensor, opening and others.

Security systems with a siren and a motion sensor are considered a suitable option for complete protection of the room from intrusions. The security sensor sends an alarm to the siren when motion is detected, which causes a reaction.

The sound of an alarm siren is often enough to scare away intruders, so an alarm siren is an important element of a burglar alarm. Motion sensors, thermal sensors of fire, smoke and others transmit information to the central security system and, in case of receiving an alarm signal from the sensors, the siren is activated.

Because of the benefits of an alarm siren, it is essential to consider a siren for installation carefully.

How to choose an street alarm siren

When choosing a siren for the alarm, the attention should be paid to the following points:

• Reaction of the siren body to weather conditions and temperature differences.
• Power supply. In a power outage, the stand-alone or wireless alarm will continue to operate, unlike the wired one.
• The case’s strength and reliability — external sirens should be chosen with the anti-vandal protection.

Ajax StreetSiren – wireless street siren from Ajax

The street light or sound siren is one of the key elements of the security system. The device is able to prevent intrusion into the protected area and immediately notify of an emergency. The siren can be installed both on large industrial and trade objects or private spaces.

How the Ajax StreetSiren works

The Ajax StreetSiren is activated after the sensor (movement, opening) sends an alarm to the control panel – hub. And the hub, in turn, activates a light and sound detector. The volume level and duration of the wireless siren alarm can be set in the Ajax mobile application.

The StreetSiren wireless siren connects to the smart hub via the secure Jeweler radio protocol. Communication range — up to 1300 m provided in case there are no obstacles. The StreetSiren wireless siren features a high-power buzzer and bright LEDs. The device signal will be visible and audible at long distances.

It will not be easy to dismantle and disconnect the street siren after activation. The detector’s body is strong, a metal mesh protects the buzzer, and there is an autonomous power supply. The on/off button will be locked when the alarm is triggered.

Installation of Ajax’s wireless street siren

The correct placement of the wireless siren depends on its distance from the hub (a high signal level) and the presence of obstacles that impair the passage of radio signals and sound between devices. Barriers can be floors, walls, and dimensional objects.

If the communication signal is low, you need to move the siren 20 centimeters and recheck the signal. If the signal is still down — it is worth connecting a Rex signal repeater to the system. It helps to improve the level of communication.

It is necessary to mount a wireless street siren at the height of at least 2.5 for difficult accessibility. This rule of installing the sound detector helps avoid unauthorized dismantling by intruders. Also, the street siren on the alarm system is equipped with the button of the tamper and the accelerometer. The tamper button responds to the opening or opening of the detector housing and the accelerometer — when disassembling or moving the device.

The Ajax StreetSiren wireless street siren runs on pre-installed batteries for up to 5 years. After the battery level is low — the burglar alarm will notify its users with appropriate notification.

Where not to install a wireless street siren for burglar alarms

Installing a wireless street siren will be ineffective in several cases:

• Closer than 1 meter to the hub — signal failure is possible.
• Near mirrors or metal objects that shield the radio signal and cause it to attenuate.

A street siren for a burglar alarm can increase the effectiveness of a security system. It is the fastest and loudest device available for intrusion response. A wireless street siren alarm in most cases will be enough to scare off intruders.

Conclusion

A security siren can protect the room from intrusion. Detection sensors transmit an alarm signal to the control panel, which activates the siren. A loud signal is able to scare away intruders and attract the attention of others to the object of invasion.

The siren for the security alarm system warns of the threat of invasion of the protected territory, attracts the attention of others and interferes with further actions of malefactors. Sirens are sound and light and sound. The standard components of modern GSM alarm systems are light and sound burglar alarms.

Sirens differ in signalling and by type of use. For outdoor and indoor placement, it is worth using the appropriate devices. The housing of the outdoor siren is protected from adverse weather conditions, unlike indoor ones. And the sound volume of these types of sirens is also different. The sound power of the street siren is greater.