Trumeter 3410 Series Electronic LCD Hour Meters feature a large display of 0.28″ high characters and are totally sealed from moisture and dirt. These meters are available in 5 different housings and offer a wide operating voltage range of 10VDC to 300VDC and 20VAC to 300VAC. All of the models are NEMA 4/4X, 12, and IP66-rated when used with an optional gasket and have a polarized lens, assuring high visibility in an outdoor environment. Trumeter 3410 Series Electronic LCD Hour Meters are suitable for medical devices, control panels, and generators.