User Guide
6
AC/DC Voltage: <1000V AC/DC
AC VOLTS
Ranges Accuracy Resolution Overload Protection
600 mV to 1000V ±(1.0% +3 dgts) 0.1 mV to 1V 1000V
Minimum sensitivity: 0.5V AC (auto selection mode), Frequency bandwidth: 400Hz
DC VOLTS
Ranges Accuracy Resolution Overload Protection
600 mV to 1000V ±(0.5% +3 dgts) 0.1 mV to 1V 1000V
Minimum sensitivity: 0.5V DC (auto selection mode)
  WARNING
•  Use CATIII rated Test leads or higher.
•  Do not attempt to measure more than 1000V AC/DC.
•  Do not exceed 25 volts AC or 60 volts DC – RMS at either the 
  common or multifunction input ports as measured from   
  earth ground.
Features: 
RANGE
MIN/MAX
HOLD
SEL
RANGE
SEL
MIN/MAX
HOLD
FAST
V
Apo
A
µA
mAµA
A
mA
 10A
MAX
FUSED
400mA
MAX
FUSED
MAX
CAT III
600V
CAT II
1000V
DM505
V
Apo
AT
DM505
SYMBOLS
Negative
A
C/DC Voltage or Current  Low Battery
Overload: Range Exceeded
Auto power off Active
Maximum measured 
value displayed
Hold/Capture Value
Minimum measured 
value displayed
µF
Microfarad
Voltage
A
Amps Diode
Microamps mA milliamps Ground
nF
nano Farads Ohms/Resistance Dangerous Levels
Continuity Warning or Caution
Auto
Auto Selection
Fuse Auto-ranging
High Voltage Indication










