QuiqLite is now equipped with a pupil gauge on the back of all 2017 models.  The main purpose for law enforcement, EMS and Firefighters  to use a pupil gauge is to check pupil responsiveness to help determine if a subject  is under the influence of drugs or alcohol.  It is also very effective tool to help determine if a subject might be suffering from a traumatic brain injury from abuse, traffic collision, or illness. QuiqLite is very useful in this area with its portability, ease of use and size.