diff --git a/electrode_check.py b/electrode_check.py
index ac4ebcd..efb6c66 100644
--- a/electrode_check.py
+++ b/electrode_check.py
@@ -359,7 +359,7 @@ def main():
 
                 if init_fig == True:
                     yspan = (np.min(channel_data[power_channel]), np.max(channel_data[power_channel]))
-                    ylim = (yspan[0] - np.abs(np.diff(yspan)) * 0.2, yspan[1] + np.abs(np.diff(yspan)) * 0.2)
+                    ylim = (yspan[0] / 1000 - np.abs(np.diff(yspan) / 1000) * 0.2, yspan[1] / 1000 + np.abs(np.diff(yspan)) / 1000 * 0.2)
 
                     for ch in channel_array:
                         h, = Plot.axs[ch].plot(np.arange(250)[:len(channel_data[ch])] / rate, np.array(channel_data[ch]) / 1000, color='k')