The Siren
Emergency vehicles such as ambulances, fire trucks and police cars use sirens to warn the public of their presence. Sirens allow emergency vehicles to be heard before being seen allowing motorist and pedestrians to react in enough time so they do not impede the first responders.
The Radio
Radios allow for a picture to be painted of a situation before first responders arrive on scene. They can also be used to tell first responders of impending dangers and possible alternative routes that would be useful to get them to the needed area quicker. The purpose of the radio is, of course, communication. All first responder agencies involved can go to the same channel and effectively communicate, allowing everyone to be on the same page. Clear, concise communication can cut down on the havoc and chaos that can be created during crisis situations.
Defibrillator
Paramedics often use defibrillators on patients who are suffering from cardiac dysrhythmias, ventricular fibrillation or pulseless ventricular tachycardia. Defibrillators deliver an electrical energy to the heart allowing for a normal rhythm to be reestablished. These electrical devices are small and portable, allowing them to be stored in vehicles and even planes, ready to be used in a moments notice.
Electronic Locator Beacon
There are several types of locator beacons that serve a variety of purposes. First responders, especially firefighters, use electronic locator beacons that flash a light and emit a noise so they can be more-easily located in times of distress or heavily smoke-filled area.
The Flashlight
The flashlight is one piece of emergency equipment that should not be overlooked. Whether police, medical or fire rescue, every first responder requires the use of a flashlight to help him or her perform their job. Advances in lighting have allowed for greater power and light from smaller bulbs. Halogen lights are common in first responder flashlights. Being able to spot danger, find lost or injured people is one of the most important things first responders need to do and flashlights help that happen.