The DT4222 is a pocket-sized digital multimeter designed specifically for general purpose testing, with ±0.5% DC V accuracy and wide 40 Hz to 1 kHz AC V bandwidth.
| DC Voltage range | 600.0 mV to 600.0 V, 4 ranges, Basic accuracy: ±0.5 % rdg. ±5 dgt. |
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| AC Voltage range | 6.000 V to 600.0 V, 3 ranges, Frequency characteristics: 40 Hz - 1 kHz Basic accuracy 40 - 500 Hz : ±1.0 % rdg. ±3 dgt. (True RMS, crest factor 3) |
| Resistance range | 600.0 Ω to 60.00 MΩ, 6 ranges, Basic accuracy: ±0.9 % rdg. ±5 dgt. |
| Capacitance range | 1.000 μF to 10.00 mF, 5 ranges, Basic accuracy: ±1.9 % rdg. ±5 dgt. |
| Frequency range | AC V measurement: 99.99 Hz (5 Hz or more) to 9.999 kHz, 3 ranges Basic accuracy: ±0.1 % rdg. ±2 dgt. |
| Continuity Check | Continuity threshold [ON]: 25 Ω or less (buzzer sound), [OFF]: 245 Ω or more Response time: 0.5 ms or more |
| Diode test | Open terminal voltage: 2.5 V or less, Testing current 0.5 mA or less, Threshold of forward voltage: 0.15 V to 1.5 V |
| Voltage Detection | N/A |
| Other functions | Filter function, display value hold, relative value display, auto-power save |
| Display | Main and Sub displays: 4-digits LCD, max. 6000 digits, bar graph |
| Display refresh rates | 5 times/s (Capacitance measurement: 0.05 to 5 times/s, depending on measured value, Frequency: 1 to 2 time/s ) |
| Power supply | LR03 alkaline batteries ×1, Continuous use: 40 hours (back light OFF) |
| Dimensions and mass | 72 mm (2.83 in) W × 149 mm (5.87 in) H× 38 mm (1.50 in) D,190 g (6.7 oz) (with batteries and holster) |
| Included accessories | Test Lead DT4911 ×1, Holster ×1, Instruction manual ×1, LR03 alkaline battery ×1 |
