2021 police vehicle sirens AL-SPL-T01

2021 police vehicle sirens

When Can Sirens Be Used?

The sirens can be used for emergency service vehicles, such as fire trucks, ambulances, police cars, etc.
The siren is mainly used when the emergency vehicle is out of the mission. and the ambulance uses the police car and police lights during the emergency mission. The police car may not use the siren depending on the situation.

What is the purpose of a siren?

Police siren is a modern alert tone. It not only has one sound, but the basic tone is composed of eight sounds.There are Air horn, Hi-Lo, Hype Lo, Hyper Yelp, Manual Wail, Wail, Whoop, Yelp.

The main reason for using police siren is to evacuate traffic ,and help emergency vehicles quickly pass through congested roads. However, it has different usages according to different sounds.

For example, yelp siren sound is more practical for curves, intersections, etc., because yelp siren is a fast exchange of treble and bass, which can attract the attention of driving vehicles and pedestrians. In a tense atmosphere, do a better escape effect. Siren wail is more suitable for driving on straight roads. Wail siren is a slow transition between high pitch and low pitch. The wailing sound is longer. After reflections from surrounding buildings, the sound is more penetrating and can make vehicles that are farther away hear the emergency. sirens.

How does a siren work

The internal work of the siren box is the operation of the motor, and the operator first needs to install the host in the car according to the instructions, connect the harness strictly according to the instructions, and then do the work of the siren box, but the sound needs to be released through the supporting speaker.

Before proceeding, you should know how the siren control box works, whether it is directly operated by a panel or controlled by a handle.If it is directly controlled by the panel, you should be familiar with the corresponding functions on the panel first.For handle operation, connect the handle to alarm siren box to understand the proofreading instructions between the operations on the handle.According to the corresponding keys, the alarm will also work as long as the harness connection is correct.

Police Sirens Emergency LED Light Bars

When you hear the siren god on the road, the sound is amplified by the horn.when you see emergency vehicles such as ambulances, fire trucks, and police cars passing by, you will see flashing warning lights on the roof. Therefore, when a police car is out of mission, it runs through the siren, horn, and warning lights. Therefore, our sirens and siren horns, sirens and long bars can all be purchased together.

Customizing Your Sounds and Lights for your 2021 police vehicle sirens

The siren box has a variety of sounds, you can customize it to us acc