Features:
1) Input circuit: isolated
2) Input circuit current: 50nA
3) Input impedance: 50m
4) Skin voltage tolerance: 100MV
5) Calibrating voltage: 1MV
6) Patient leakage current: 10
7) Frequency response: 0.05  85Hz (-3dB)
8) Time constant: 3.2s
9) Noise level: 15dB, p-p
10) CMRR: 100dB
11) Baseline drift: 0.3mm
12) Sensitivity: x1/2, x1, x2cm/MV
13) Printer: stylus
14) Paper speed: 25 or 50mm/s
15) Power: AC 110 / 220V, 50 / 60Hz
16) Rechargeable battery: 12V, 1.2Ah
17) Supports 50 exams after complete charging
18) Dimensions: 330 x 85 x 285mm
19) Weight: 5kg

Packing:
1pc/carton
Carton dimensions: 240 x 450 x 370mm