כלי תיקון שעון גלאי אוטומטי כלי

Product information:
Name: high precision timegrapher
Features: high precision and easy to use
Size: 9.8cm * 6.5cm * 5CM
Power supply: battery-free design
Purpose: dotting line, table sound waveform, setting of rising angle, daily difference, polarization, swing, frequency
Measurement: windows desktop computer, tablet, notebook