PRECISION MEASUREMENT - The stainless steel digital caliper measures 0-150 mm / 0-6 inches with a precision of ±0.02 mm and resolution of 0.01 mm. Equipped with a locking screw to secure position and ensure accurate readings without slippage. TWO MEASUREMENT SYSTEMS - Easily switch between inch and millimeter units with the MM/IN button for fast, error-free conversions. No need to calculate manually or use multiple tools for SAE or metric parts. MULTI-FUNCTION DESIGN - Features outer jaws, inner jaws, depth rod, and step measurement capability. Accurately measures internal/external diameters, depths, and steps. Ideal for industrial, automotive, professional, home, or office use. HIGH-QUALITY MATERIAL & LARGE LCD DISPLAY - Durable stainless steel construction ensures smooth sliding and long-term reliability. Polished finish with IP54 rating resists dust and water splashes. Large, high-contrast LCD screen (12 x 31 mm) allows easy reading in any environment. AUTO-OFF & WARRANTY - Automatically powers off after 5 minutes of inactivity to conserve battery life. Includes one pre-installed 1.5V LR44 battery and one spare. Backed by a 2-year warranty and 30-day money-back guarantee. PRODUCT SPECIFICATIONS - Measurement Range: 0–150 mm / 0–6 in - Resolution: 0.01 mm - Accuracy: ±0.02 mm - Repeatability: 0.01 mm - Max. Measuring Speed: 1.5 m/s - Display: LCD - Power Supply: 1 x 1.5V LR44 battery (included) - Operating Temperature: 5°C to 40°C (41°F to 104°F) - Protection Rating: IP54 (dust and splash resistant) BATTERY REPLACEMENT INSTRUCTIONS 1. Use a small screwdriver to remove the battery cover as indicated by the arrow. 2. Insert new battery with positive side facing outward. PACKAGE INCLUDES 1 x Digital Caliper 1 x Plastic Case 1 x Extra Battery 1 x Mini Screwdriver 1 x User Manual