Extech Instruments 411 User Manual page 2

Introduction
Congratulations on your purchase of the Extech 411 (part number EX411) True RMS
Multimeter. This meter measures AC/DC Voltage, AC/DC Current, Resistance, Diode Test,
and Continuity plus Thermocouple Temperature. Proper use and care of this meter will
provide many years of reliable service.
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the user
must refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal use,
hazardous voltages may be present
Double insulation
This WARNING symbol indicates a potentially hazardous situation, which
WARNING
if not avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation, which
CAUTION
if not avoided, may result damage to the product.
This symbol advises the user that the terminal(s) so marked must not be
MAX
connected to a circuit point at which the voltage with respect to earth
1000V
ground exceeds (in this case) 1000 VAC or VDC.
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