Digital IP67 with straight measuring rail and locking screw. Features: 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 with variable data output (USB, RS 232, Digimatic). Additional technical specifications: Measuring rail cross-section: 12 x 4 mm, inspection required: yes. Delivery includes factory calibration and battery (CR2032). Note on the disposal of batteries and accumulators: As we sell batteries and accumulators or devices that contain batteries and accumulators, we are obligated under the Battery Act (BattG) to inform you of the following: The symbol of the crossed-out trash can on batteries or accumulators means that they must not be disposed of in household waste after use. If batteries or accumulators contain mercury, cadmium, or lead, you will find the respective chemical symbol (Hg, Cd, or Pb) below the symbol of the crossed-out trash can. 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. For batteries that contain more than 0.0005 mass percent mercury, more than 0.002 mass percent cadmium, or more than 0.004 mass percent lead, the chemical designations of the respective harmful substance are located under the trash can symbol.