What is the unit and the scale of signals?

• The unit for EEG signals is microvolts [μV], range ±100 mV
• The unit for Gyroscope data is degrees/second [dps], range ±2000 dps
• The unit for smartphone’s Accelerometer data is [m/s2] = ±4 g (not available when working on a PC)
• The unit for Impedance measures is [kΩ], range 0-100 kΩ