Voltage question

In the last location it was usually between 118 and 122.

Eben.

The problem with Monster is that it will pass overvoltages on unlike other surge suppressors that shut down to protect your equipment.

It should read 120. Send it back

The Monster is not a voltage regulator - its just a filter with some protection.
The issue lies with either the installation as mentioned by GS5556 or most probably the supply from the power grid.

Depending where you live, the voltage can vary and sometimes the tolerances in Fatparrots post are often exceeded (although the utilities will deny this!).

In your case, all voltages you mention are within normal tolerance levels.

Thanks for the input guys. I appreciate it. I'll stop worrying.

Eben.