Johnson Level Plastic 24-in 3 Vial I-beam Level Item # 3552592 | Premier Part # 810N-D4001 | The unit monitors and re

The unit monitors and re alarms if carbon monoxide level persist sounding a loud 85 decibel horn

Louvers can be easily trimmed to desired length

and HC refrigerants

Highest roofing fire rating - UL Class A

Extended Run Time blade and Upper Blade

Johnson Level Plastic 24-in 3 Vial I-beam Level Item # 3552592 | Premier Part # 810N-D4001 | The unit monitors and reProudly made in Wisconsin, Johnson's Structo Cast levels are great for small DIY jobs and offer some unique benefits over our aluminum levels they're non conductive, they won't mar painted surfaces, and they're our lightest weight levels. Tough Structo Cast frame Durable easy read acrylic vials are impact resistant Quik Change replaceable vial covers Frame is non conductive and will not scratch fine wood or painted surfaces