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>>Electric parameter:
1. Measuring range: Voltage: 0-300V; Current: 0-0.5A/5A (Auto range switch)
2. Input resistance: Voltage: greater than 1MΩ; Current: less than 0.01Ω
3. Frequency range: Base frequency 45Hz, band 5KHz
4. Accuracy specification: Voltage, Current, Power: ±(0.4% read value+1digit)
5. Power factor: ±(0.004+0.001/read value+1digit)
>> Photometric parameter:
1. Measuring range of brightness: 0.001kcd/m2-999.9kcd/m2
2. Accuracy grade: 1class
3. Range: automatic switch between four grade of decuple scale
