Type of wave

Cycle

Amplitude

Source

P-wave

0.06 - 0.11

0.05 - 0.25

Produce left and right atrium signal

Q-wave

<0.03 - 0.04

Deliver left and right atrium signal

R-wave

-

<2.5

Deliver left and right atrium signal

S-wave

0.06 - 0.11

-

Deliver left and right atrium signal

T-wave

0.05 - 0.25

0.1 - 1.5

Electric potential of ventricular repolarization

P-wave

0.06 - 0.14

Coplanar with the baseline

Between P-wave and QRS-weave

PR interval

0.12 - 0.20

-

Deliver to ventricular

ST-wave

0.05 - 0.15

Line

Process of ventricular restoration

QT interval

<0.4

-

process of ventricular repolarization