Features Long Lasting Performance: This electronic depth gauge base, powered by a battery (not included), boasts a long service life suitable for a variety of applications, making it suitable for professionals in different fields requiring electronic depth measurements. Extensive Range and Accuracy: With a measurement range of 0 to 50.8mm/2in and an accuracy of 0.001mm/0.00005in, this tool provides accurate measurements at speeds of ≤3 meters/s, ensuring accurate and stable data collection. Seamless Data Transfer: Easily connect this depth gauge to your computer via the USB port for effortless data transfer. This convenient feature simplifies data collection and analysis for enhanced efficiency. Robust Construction: Crafted from alloy steel and hardened stainless steel, the base of this depth gauge ensures flatness and accurate readings. The stainless steel material guarantees durability for long term use. Clear Readings with LCD Display: Designed with an LCD screen, this depth gauge base allows for easy and accurate reading of measurements. The digital display enhances visibility, ensuring clear presentation of measurement results. Spec: Item Type: Electronic Depth Gauge Material: Alloy Steel, Stainless Steel Battery: Battery x1 (battery not included) Measurement Range: Approx. 0-50.8mm / 0-2in Accuracy: Approx. 0.001mm / 0.00005in Measurement Speed: ≤3 meters/s How to Use: 1. Loosen the locking screw and press the power switch (OFF ON) to start the power, check if the display screen and all keys are working properly; 2. Move the caliper frame (metal structure on the back of the display screen) to align the end face of the measuring rod with the measuring reference , press the 0 key to 0, and then you can start measuring; Package List: 1 x Depth Gauge 1 x English Instruction Manual 1 x Storage Box Note: 1. This product is an accuracy measuring instrument. Handle with care to prevent impact and maintain accuracy; 2. Avoid getting liquid substances such as water and oil on the protective film. Do not apply voltage to the ruler to prevent damaging the circuit; 3. If not in use for a long time, turn off the power (OFF ON) switch. Remove the battery if not used for more than 1 month; Package List 1 x Depth Gauge 1 x English Instruction Manual 1 x Storage Box