Features: Manual power on / off 28 x 9 mm clear LCD display Zero setting at any position Mini size, handheld and portable Metric / inch system interchange Suitable for tread depth measurement Designed with electroplated iron probe Specifications: Material: ABS plastic Range: 0-25.4mm Resolution: 0.01mm Working temperature: 0-40℃ Power: 1 x 1.5V Sr44/LR44 button battery Product size: Approx. 11.5 x 6 x 1.5cm Product weight: 50g Package include: 1 x Tyer Tread Depth Gauge