High Voltage Insulation Tester3121/3122/3123
- Dual scales for low and high ranges which change automatically. Colour coded scales for easy reading plus LED’s that illuminate in matching colour.
- Drip proof construction.
- Hard carrying case furnished as standard accessory.
- Designed for low power consumption.

| MODEL | 3121 | 3122 | 3123 | |
| DC Test Voltage | 2500V | 5000V | 5000V | 10000V |
| Measuring Ranges (automatic change) | 2GΩ/100GΩ (autoranging) | 5GΩ/200GΩ (autoranging) | 5GΩ/200GΩ (autoranging) | 10GΩ/400GΩ (autoranging) |
| First Effective Measuring Ranges Accuracy | 0.1~50GΩ | 0.2~100GΩ | 0.2~100GΩ | 0.4~200GΩ |
| |±5% rdg | ||||
| Other ranges Accuracy | |±10% rdg or 0.5% of scale length | |||
| Withstand Voltage | 5000V AC for 1 minute | |||
| Power Source | R6P(AA)(1.5V) × 8 | |||
| Dimensions | 200(L) × 140(W) × 80(D)mm | |||
| Weight | 1kg approx. | |||
| Accessories | 7058(Test leads) 9039(Hard Carrying Case) R6P(AA) × 8 Instruction Manual | 7058(Test leads) 9039(Hard Carrying Case) 8019(Pickel type prod) R6P(AA) × 8 Instruction Manual | ||
| Optional | 8019(Pickel type prod) 8020(Adaptor for recorder) | 8020(Adaptor for recorder) | ||