真的RMS数字Multimeter

Features This multimeter is compact 3 5/6-digit true rms digital multimeter with the USB2.0 standard interface. It can be operated easily and is an ideal measurement tool. Measures the true-rms values of AC voltage and AC current. Transfers the measurement readings of the meter to a computer through standard USB port Data-hold mode Analog bar graph, reading unit indication and backlight Automatic polarity indication Manual range mode and autorange mode Automatic/manual power-off Relative value measurement Max./Min. measurement Overload protection Provides low battery indicationSpecificationsVoltage DC:60m/600m/6/60/600/600V Voltage AC:60m/600m/6/60/600/600V Current DC:600μ/6000μ/60m/600m/6/20A Current AC:600μ/6000μ/60m/600m/6/20A Resistance:600/6K/60K/600K/6M/60MΩ Capacitance:40n/400n/4μ/40μ/400μ/4000μF(30 sec.) Frequency:9.999 - 9.99MHz Temperature:-20 0 400 1000°C/-4 32 752 1832oF Duty Cycle:0.1% 99.9% hFE: Vce≈2.2V,1b≈4μA Continuity Less han 20Ω,more than 70Ω Diode Check approx.3.0V Voltage DC:60mV/600mV ±0.5%, 6V/60V/600V/1000V ±0.8% Voltage AC:60mV/600mV ±1.0%, 6V/60V/600V/750V ±1.2% Current DC:600μA/6000μA, 60mA/600mA ±1.2%, 6A/20A ±1.5% Current AC:600μA/6000μA, 60mA/600mA ±1.5%, 6A/20A ±2.0% Resistance:600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ ±1.0%, 60MΩ ±1.5% Capacitance:4nF, 40nF ±2.0%, 400nF ±0.5%, 4μF ±1.0% 40μF ±1.5%, 400μF, 4000μF(30 sec) ±2.0% Frequency:9.999Hz,99.99Hz,999.9Hz,9.999kHz,99.99kHz,999.9kHz, 9.999MHz,99.9M(High-frequency accessary) ±1.0% Temperature: ±400°C(+725°F, -688°F)/±4000°C(+7232°F, -7168°F) Continuity:in 600Ω range. Buzzer sounds < 30Ω Duty Cycle:0.1% 99.9%