High-Precision Calibrator: This is a high-precision calibrator designed for personal amateur watchers. It uses the lowest cost to make an affordable and good instrument. Professionally designed, it can measure daily difference, polarization, swing, frequency, dotted line, sound waveform, Rise angle setting. Compatible With: Professionally integrated power amplifier operation circuit and vibration sensor.Can be used with desktops, laptops and tablets for Win XP, 7, 8 and 10. Reliability and Durability: instrument is constructed from hard plastic, ensuring reliability and durability. The inner closed sound insulation cavity eliminates external noise interference, providing clear output signals that are isolated from environmental noise. Professional Design: A high-precision calibration instrument specially designed for amateur users.Professional design! Compared with similar products, its performance accuracy is better, featuring anti-magnetization. Wide Application: This tool is great for the watch enthusiast or even a watch repair shop.