Features DIGITAL DIAL INDICATOR: 4 digit large LCD display screen, stable and durable, used for accurate measurement of small linear distances in mechanical and industrial processes, without reading errors. CEMENTED CARBIDE PROBE: M2.5 thread, with good wear resistance and anti embroidery performance, can be disassembled and replaced with other sizes. SWITCHABLE BETWEEN INCHES AND METRIC SYSTEMS: Measuring range from 0 to 50.8 millimeters, with high resolution up to 0.01 millimeters (0.0005 inches), suitable for various measurements. 0 ADJUSTMENT WITH CONVENIENT PORTS: RS232 data output interface and CR2032 battery compartment, convenient for battery replacement (excluding batteries) APPLICABLE SCENARIO: Electronic dial indicator is very suitable for use in machinery, industrial processes, and laboratories. Specification: Item Type: Digital Dial Indicator Material: Aluminum Alloy Battery: 3V button battery CR2032 x 1 (shipped without battery) Resolution: 0.01mm/0.0005in Accuracy Range: ± 0.02 Measurement Range: 0 to 50.8mm (0 to 2 in) Working Temperature: 0 to 40 ℃ Storage Temperature: -20 to 70 ℃ Working Humidity: Less than or equal to 80% Package List:1 x Digital Dial Indicator1 x Plastic Box  Note:1. The movement speed of the measuring axes of the digital display meter shall not exceed 3 meters/second.2. Digital display meters are accuracy measuring tools, and they should be prevented from hitting or falling during use to avoid losing accuracy.3. The digital display meter should be kept clean to prevent liquid substances such as water from seeping into the meter to avoid affecting normal use.4. The digital display meter can be wiped clean with aviation gasoline, and acetone cannot be used.5. When not using the data output port, do not remove the output port cover and do not touch the output end with metal devices to avoid damaging the electronic circuit.6. No voltage should be applied to any part of the digital display meter, and do not use a pen to engrave characters to avoid damaging electronic circuits.7. When not in use, turn off the power supply; Turn on the power during use to restore the display. Package List 1 x Digital Dial Indicator 1 x Plastic Box