Specifications
DIGITAL MULTIMETER 
  SPECIFICATION
 NTS
3.2.7 Frequency 
Range  Resolution
Accuracy 
9.999Hz
0.001Hz  ± 2.0% of reading + 5 digits
99.99Hz
0.01Hz   
999.9Hz
0.1Hz  ± 1.5% of reading + 5 digits
9.999kHz
1Hz   
99.99kHz
10Hz   
199.9kHz
100Hz  ± 2.0% of reading + 5 digits
>200kHz
  for reference only 
- by Hz range: 
Measurement range: 0 ~ 200kHz 
Input voltage range: 0.5V – 10V rms AC (higher input 
voltage at higher frequency) 
Overload protection: 250V DC or rms AC 
- by V range: 
Measurement range: 0 ~ 40kHz 
Input voltage range: 0.5V – 750V rms AC (higher input 
voltage at higher frequency) 
Input Impedance: 10MΩ 
Max. input voltage: 1000V DC or 750V rms AC 
- by µA, mA or A   range: 
Measurement range: 0 ~ 40kHz 
Input current range: ≥ 1/4 range rms AC (higher input 
voltage at higher frequency) 
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DIGITAL MULTIMETER 
  SPECIFICATION
 NTS
- Max. input current:   
mA jack µA ranges : 4mA,   
mA jack mA ranges : 400mA, 
10A jack: 10A 
- Overload Protection:   
µA mA ranges: resettable fuses F1 500mA/250V 
10A range: F2   10A/250V fuse (quick acting). 
NOTE: 
When measuring frequency, the range by Hz range is larger 
than that by the Hz of voltage range or current range, but the 
value measured beyond the range is for reference only. 
3.2.8 Duty 
Range  Resolution  Accuracy 
0.1 - 99.9%  0.1%  ± 3.0% 
- By Hz range: 
Frequency response: 0 ~ 200kHz 
Input voltage range: 0.5V – 10V rms AC (higher input 
voltage at higher frequency) 
Overload protection: 250V DC or rms AC (higher input 
voltage at higher frequency) 
- By V range: 
Frequency response: 0 ~ 40kHz 
Input voltage range: 0.5V – 600V rms AC (higher input 
voltage at higher frequency) 
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