1. Holds the maximum value, minimum value, average value, and the last measured value 2. Fully displays operation instructions and unit symbols, which are concise and clear 3. Wide measuring range and high resolution 4. Battery low power indication, LCD backlight display, and auto shutdown 5. Utilizes advanced microprocessor technology and laser technology, making the instrument more intelligent and reliable. Large screen LCD display with clear indication Solid and refined structure. The device features durable, optimized electronic components. The shell is made of lightweight and sturdy ABS plastic, offering a sleek appearance and convenient operation Warning: To avoid potential harm, please follow these instructions: This is a laser productdo not look directly into the beam, as it may cause eye injury. Keep away from children Precautions: For accurate measurements, observe the following: The optimal measuring distance between the instrument and the object is 50500 mm. The ideal angle between the instrument and the target surface should be within 30 degrees to minimize multiple reflections If no reflection tag is used, ensure the reflection point on the object has sufficient reflectivity. In such cases, align the instrument perpendicularly to the surface to verify proper reading The non-reflective area must be larger than the reflective area Before applying a reflective tag, ensure the surface is clean and smooth If the instrument is not used for an extended period, remove the batteries to prevent damage from battery leakage Batteries not included: Requires 3 x 1.5V AAA batteries (not included) Color: Black + Orange Material: ABS Package Contents: 1 x Tachometer Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error tolerance is +/- 13 cm