Trail Camera Technical Terms Defined

Trail camera use is steadily increasing. With that increased use are more and more people who do not understand exactly what all of the technical lingo means. So, here I am going to try and define as much of the current vocabulary as I can.
PIR (Passive Infrared)Security Sensor device that senses motion like a typical motion detector. PIR Requires Infrared Energy and Motion to trip a sensor.
IR FlashLED Night Vision flash. The camera produces a burst of Infrared Energy which is invisible to the human eye. It is especially useful for night photos when a visible flash is undesirable such as in high pressure hunting areas.
Camera FlashA xenon Flash used for night photography. It is typically oversized to achieve greater flash range for hitting game out further.
EventAny time that the PIR senses motion it counts it as an event. Events are recorded to a memory card in a text file. Events are recorded continuously during operation and can be erased when needed. Not all cameras place this in a text file; some simply record it on the camera’s screen.
ImageAn image is a digital picture recorded on the memory Card when motion is sensed. Images are taken at the desired delay between images. Some types of cameras allow for a series of images to be taken at any one given trigger time.
Trigger Time
Trigger time is the time delay from when an object comes into the PIR range and the triggering of the camera.
Image DelayDelay between images taken by the camera. This is set by the user, based on wildlife activity in area. All cameras have different settings based on make and model.
Battery LifeTime the camera will function in the field. Battery life is dependent on temperature, number of images taken, and number of flashes during that time. Cold weather and night time flash photos reduce battery life the most.