M Series DUO

MA:0015 • 7/08/2022

Whelen’s highly popular M Series™ lightheads are now available with DUO™ functionality in the M4, M6, M7, and M9 models. Features include advanced Linear-LED® optics for unmatched high-intensity warning and low current consumption, DVI™ enabled light patterns, and Whelen’s patented E Block™ technology which forms a watertight seal around the unit’s stranded wires to prevent air and moisture from entering the lighthead. M Series DUO lightheads are available in 12 VDC, have hard-coated lenses that resist environmental damage from sand, sun, salt, and road-chemicals, and are IP67 rated for dust and water resistance.

Download PDF


We're Proud to Celebrate Over 70 years of Manufacturing Our Products in America #WeNeverLeft