3121A

3122A

3123A

DC test voltage

2500V

5000V

5000V

10000V

Measuring ranges
(automatic change)

2GΩ/100GΩ
(Auto-ranging)

5GΩ/200GΩ
(Auto-ranging)

5GΩ/200GΩ 
(Auto-ranging)

10GΩ/400GΩ 
(Auto-ranging)

First effective
measuring ranges

0.1 ~ 50GΩ

0.2 ~ 100GΩ

0.2 ~ 100GΩ

0.4 ~ 200GΩ

Accuracy

|± 5% rdg

Other ranges accuracy

|±10% rdg or 0.5% of scale length

Withstand voltage

5000V AC for 1 minute

Power source

R6 (AA) (1.5V) × 8

Dimensions

200 (L) × 140 (W) × 80 (D) mm

Weight

approx. 1kg

Accessories

7165A (Line probe) (3m)
7224A (Earth cord) (1.5m)
7225A (Guard code) (1.5m)
9158 (Hard case)
R6 (AA) × 8
Instruction manual

7165A (Line probe) (3m)
7224A (Earth cord) (1.5m)
7225A (Guard code) (1.5m)
8019 (Hook type prod)
9158 (Hard case)
R6 (AA) × 8
Instruction manual

Optional

7168A
(Line probe with aligator clip)
8019 (Hook type prod)
8324 (Adaptor for recorder)
7253 (Longer Line probe with alligator clip) (15m)

7168A
(Line probe with aligator clip)
8324 (Adaptor for recorder)
7253 (Longer Line probe with alligator clip) (15m)