Features: Four switching unit for data storage: Kgfcm kilogram millimeter, meter, Ibfft pound force foot, Ibfin pound inch. The number of backlit displays when using a large LCD screen. Pres set torque value alarm. Standard magnetic interfaces is not easy to fall: for various 6.35mm hexagonal handle head. Three modes can be switched with just 1 clicks: lightly press the M key to switch modes,Track: Real time mode (real-time display of torque values)mode (records the measured torque ZUI): presets mode (presets torque value, alarm after reaching the presets value)Technology: Accuracy: Bidirectional ± 2%Battery: 2 7 batteries (excluding)Mode: Real time, presetsUsing a rings: humidity 0-40 ℃, humidity<80%Set of 10 batchhead. Specifications: Materials: ABS Size:138x40mm Package Includes: 1PC Digital Torque Screwdriver note: Due to the screen setting difference, the item color may slightly differents from the pictures. Please allow slight dimension difference due to differents manual measurement.