The TECH 500 DP features durable anodised measuring surfaces. It has a digital display with large digits and lighting for optimal readability, even in poor lighting conditions. Supplied in a protective bag. Specifications: Display modes: °, %, mm/m, in/ft. Input power: 2 x AA batteries (supplied). Accuracy: ±0.05° at 0° and 90°; ±0.2 at 1-89°.