This Electronic Digital Caliper is a high-precision measuring instrument designed for accurate internal, external, depth, and step measurements. Featuring a user-friendly LCD display and a durable build, it is suitable for both professional and hobbyist applications in mechanical, engineering, and DIY projects.- Accurate Measurement: Offers high precision with a resolution and repeatability of 0.01mm / 0.0005".- Multiple Measuring Ranges: Available in various sizes — 0-75mm / 3", 0-100mm / 4", 0-150mm / 6", 0-200mm / 8", and 0-300mm / 12".- Fast Measuring Speed: Capable of measuring up to 1.5m/sec (60"/sec).- Clear LCD Display: Easy-to-read digital screen provides instant results in metric or imperial units.- Power Efficient: Operates on a single 1.55V button cell with manual shut-off to conserve energy.Preparation Before Use:- Loosen the locking screw to allow slider movement.- Clean all measuring faces and the caliper bar with dry cotton fabric — do not use organic solvents.- Ensure all buttons and the LCD display are functioning correctly before use.Basic Operating Instructions:- Press the ON button to power on the caliper.- Select your preferred unit (inch or metric) using the Inch/Metric button.- Gently close the external measuring jaws and press the - - Zero button to reset the display.- Apply standard measuring pressure for accurate results.Maintenance Instructions:- Always clean the caliper bar with dry cotton fabric before and after use to prevent display issues from moisture.- Keep the caliper clean and dry; liquids may damage the slider.- Gently clean measuring faces with cotton fabric — never use petrol, acetone, or other solvents.- Turn off the caliper when not in use to conserve battery life.- Do not apply electric current or use electric pens on the caliper, as it may damage internal components.- If the display malfunctions after battery replacement, remove the battery, wait at least 30 seconds, and reinsert it.
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