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  • AC Voltmeter with linear, easy-to-read scales.
  • Auto discharge function; any charge stored in the circuit under test will be automatically discharged after testing.
  • Designed to meet IEC/EN 61010-1 CAT.III 600V, CAT.II 1000V
  • Color-coded scales for easy reading.
  • Back light function to facilitate working at dimly illuminated locations.
  • Test lead set with remote control switch.
  • Shoulder strap for hands free.
Insulation Resistance
DC Test Voltage 250V/500V/1000V
Max. Effective
Scale Value
Mid-Scale Value 1MΩ/2MΩ/50MΩ
First Effective
Measuring Range

0.05~20MΩ (250V)
0.1~50MΩ (500V)
2~1000MΩ (1000V)
|±5% of Indicated Value
Second Effective
Measuring Range

20~50MΩ (250V)
50~100MΩ (500V)
1000~2000MΩ (1000V)
|±10% of Indicated Value
AC Voltage 600V
Accuracy |±3% of Full Scale Value (AC V range)
|±5% of Full Scale Value (Except for AC V range)
Safety Standard
IEC/EN 61010-1 CAT.III 600V,CAT.II 1000V
Withstand Voltage 5550V AC for 1 minute
Power Source R6P (AA) (1.5V) × 6
Dimensions 105(L) × 158(W) × 70(D)mm
Weight 520g approx.
Accessories 7150A (Remote control switch set)
7081B (Guard Connection Lead): 3321A only
Shoulder Strap
R6P (AA) × 6
Instruction Manual
Optional 7115 (Extension Probe)
8016 (Hook type prod)
9089 (Carrying Case)