The QuantiCheck is the world’s first quantitative user seal check device. It was designed to allow you to go above and beyond the set subjective standards for a user seal check. Used in conjunction with an approved fit test program, the QuantiCheck indicates to the user that an adequate seal has been made or if adjustments are needed every time the mask is worn.
The Stinger 2020 has a squared-off look with flat edges that prevent it from rolling. Another interesting aspect of the new Stinger’s design is the notch on the flashlight’s body that makes it really hard for anyone to take away your light.