The WaveCel hard hat is available in two designs, the WaveCel T2+ Max ($189), a full-brim vented hard hat with top and rear vents, and the WaveCel T2+ Pro ($169), which is non-vented.

The hard hat, called Safeguard, is a wearable device that fits inside a hard hat. It uses machine learning to recognize workers' unique movement patterns while they are completing tasks and ...