Low impedance voltage testing (LoZ)
According to the manual, overvoltage is limited at 1100 V,



You will also see the voltage ranges for the AutoV (LoZ) mode are 600 and 1000 V. This indicates the meter will not be damaged by use testing 240 VAC circuits in AutoV(LoZ) mode.

However, also take note of the warning,



To summarize this warning: Do not use this mode for testing high voltage circuits not designed to drive impedances as low as 2 kohm, as you may damage the circuit.