Description Mechanical Clock Calibration Detection Time Measuring Tester Tool Model: Precision Calibrator Measuring Range: Clock Specification: Calibration Device (Gray) Series: Precision Calibrator Type: Tools Item Type: Repair Tools & Kits High-precision calibration instrument, specially designed for hobbyists Professional design! Compared to similar products, this device offers higher measurement accuracy and is anti-magnetic. Excellent hardware design and analysis software distinguish it. It measures time of day difference, polarization, amplitude, frequency, dotted lines, waveform diagrams, and rise angle. The robust and reliable housing is made of hard plastic. The internal circuitry does not generate magnetization. Connection is via a USB-C cable. The device is compatible with mobile phones and computers (Android smartphones, tablets, laptops, and desktop computers). It is small, portable, and easy to transport. Color: Gray Material: Plastic + Iron Package Contents: 1 x Gauge Calibrator 1 x USB Cable 1 x Installation Bag Only the above package contents are included. Other products are not included. Note: Light reflections and different screen settings may cause the color of the item in the picture to be slightly different from the original. The measurement deviation is +/- 1-3 cm.