PCE-VC20 is a portable shaker vibration calibrator used to calibrate vibration sensors, meters, analyzers and testers. Suitable for calibrating equipment weighing up to 600 g (1.32 lb), this rechargeable-battery-powered vibration calibrator generates mechanical vibrations with a quartz-stabilized vibration frequency of 159.15 Hz (radian frequency 1000/s).

Load-independent vibration magnitude with an RMS of:
- 10 m/s² vibration acceleration
- 10 mm/s vibration velocity
- 10 µm vibration displacement