CENTER 21, Smarter Leads to More Efficient
With smart detection function, you can care less whether you are measuring AC or DC voltage as it just knows. Moreover, the integrated capacitance, resistance, diode test, and continuity function brings even more conveniences. NCV function also alarms you intuitionally immediate upon detection of voltage. To make your job easier, backlit LCD shows you the bright and clear reading regardless what kind of working condition you are in. CENTER 21 is also rated 600V CAT III.
Model | 20 | 21 | 260 |
| AC | AC/DC (Smart) | AC/DC, 1mA |
True RMS | | | YES |
Clamping diameter | 25mm | 25mm | 13 mm |
Autorange | YES | YES | YES |
SMART function | | YES | |
NCV detection | | YES | |
Backlit LCD | | YES | YES |
LED Flashlight | | | YES |
Measurement | | | |
Current | | | | |
AC | Range | 0.01 to 400.0 A | 0.01 to 600.0 A | 1 mA to 100.00 A |
| Accuracy | 1.9% rdg + 5 dgts | 1.9% rdg + 5 dgts | 1.8% rdg + 5 dgts |
DC | Range | | | 1 mA to 100.00 A |
| Accuracy | | | 1.8% rdg + 5 dgts |
DCμA | Range | | | |
| Accuracy | | | |
Voltage | | | | |
AC | Range | 0.1 to 600 V | 0.001 to 600 V | 0.01 to 300.0 V |
| Accuracy | 1.2% rdg + 5 dgts | 1.2% rdg + 5 dgts | 1.2% rdg + 5 dgts |
DC | Range | 0.1 to 600 V | 0.1 to 600 V | 0.01 to 300.0 V |
| Accuracy | 1% rdg + 3 dgts | 1% rdg + 3 dgts | 1% rdg + 2 dgts |
Ohm | 1 to 400 Ω | 0.1 Ω to 6.000 MΩ | 0.1 Ω to 500.0 kΩ |
Hz | | | |
| Current | | 1 Hz to 10.00 kHz | |
| Voltage | | 1 Hz to 100.0 kHz | |
Continuity | < 25 Ω | <30 Ω | < 120 Ω |
Diode test | | < 1.2 V+ Beeper | |
Capacitor | | 0.001 nF to 600.0 nF 0.001 μF to 600.0 μF | |
Temperature | | | |
Functions | | | |
Inrush | | | |
Peak | | | |
Hold | YES | YES | YES |
Zero | | | YES |
Min./Max. | | | YES |
Auto power off | YES | YES | YES |
Electrical safety rating | 600V CAT III | 600V CAT III | 300V CAT III |
Battery | 2 x AAA 1.5V | 2 x AAA 1.5V | 2 x AAA 1.5V |
Dimensions & Weight | 203x75x32mm/262g | 203x75x32mm/262g | 220x72x35mm/ 210 g |