Review on 🔨 Johnson Level Tool 80 5556 Contractor: Precision and Durability Unleashed! by Charles You

The peephole is a horizontal slit rather than a round hole, allowing more light into the eye without sacrificing accuracy. The bubble is a neat dichotomy on the scale. I like that the bubble mirror is in the middle of the field of view and not on the side. I think this helps maintain the horizontal yaw angle of the bubble. There is no adjustment (like most handheld scales) but my initial testing showed the error to be less than I can measure. (I'll try not to drop it on a hard surface.)