Digital IP67 measuring system, resistant to dust and temporary immersion in water. Housing with high chemical resistance, equipped with a locking screw and cross slots. LCD display 11 mm. Functions: On/Off switch, QuickStart electronics, QuickLock function for single zero setting and key lock to prevent accidental key activation, zero point setting at any position, PRESET function (measurement presetting). Additional technical specifications: certification required: yes. Delivery includes factory calibration and battery (CR2032). Note on the disposal of batteries and accumulators: The symbol of the crossed-out bin on batteries or accumulators means that they must not be disposed of in household waste after use. Every user of batteries or accumulators is legally obligated to return old batteries and accumulators. You can do this free of charge at retail stores or at another collection point near you.