HP41A TrueRms AC DC Ammeter Voltmeter 2000Count Digital Multifunctional Meter Tester Condition: Item Type: Digital Multimeter Material: ABS General Technical Indicators Display Digits 3 1/2 digit LCD display, maximum reading 1999 Auto Range Test Support Maximum Voltage between Input Terminal and Ground CATⅢ 300V or CAT II 600V Over-Range Indication Display the measurement value position, display "OL" Automatically Display Negative Polarity "-" Low Battery Indicator Display Symbols Automatic Shut-Down When the measurement exceeds 15 minutes without turning the dial and pressing the button, the meter will switch to the standby mode, press the SELECT button to exit the standby mode Power Supply 1.5V 2 x AAA batteries (not included) Operating Temperature 0℃~40℃ (relative humidity <85%) Storage Temperature -10℃~50℃ (relative humidity <85%) DC Voltage Range Resolution Accuracy 200mV 0.1mV ±(0.5% of reading + 5 digits) 2V 1mV ±(0.5% of reading + 5 digits) 20V 10mV ±(0.5% of reading + 5 digits) 200V 100mV ±(0.5% of reading + 5 digits) 600V 1V ±(0.8% of reading + 5 digits) Input Resistance ＞10MΩ, 200mV file＞100MΩ Overload Protection DC 600V or AC 600V true rms AC Voltage (True RMS) Range Resolution Accuracy 2V 1mV ±(0.8% of reading + 5 digits) 20V 10mV ±(0.8% of reading + 5 digits) 200V 100mV ±(0.8% of reading + 5 digits) 600V 1V ±(1.0% of reading + 5 digits) Input Resistance ＞10MΩ Overload Protection DC 600V or AC 600V true rms Frequency Range 40Hz~2kHz DC Current Range Resolution Accuracy 200uA 0.1uA ±(1.2% of reading + 5 digits) 2000uA 1uA ±(1.2% of reading + 5 digits) 20mA 10μA ±(1.2% of reading + 5 digits) 200mA 100μA ±(1.2% of reading + 5 digits) 2A 1mA ±(1.5% of reading + 5 digits) 10A 10mA ±(1.5% of reading + 5 digits) Overload Protection 10A/250V fast fuse for 2A/10A range; 250mA/250V fast fuse for other range AC Current (True RMS) Range Resolution Accuracy 200uA 0.1uA ±(1.5% of reading + 5 digits) 2000uA 1uA ±(1.5% of reading + 5 digits) 20mA 10μA ±(1.5% of reading + 5 digits) 200mA 100μA ±(1.5% of reading + 5 digits) 2A 1mA ±(2.0% of reading + 5 digits) 10A 10mA ±(2.0% of reading + 5 digits) Overload Protection 10A/250V fast fuse for 2A/10A range, 250mA/250V fast fuse for other range Frequency Range 40Hz~2kHz Resistance Range Resolution Accuracy 200Ω 0.1Ω ±(1.0% of reading + 5 digits) 2kΩ 1Ω ±(1.0% of reading + 5 digits) 20kΩ 10Ω ±(1.0% of reading + 5 digits) 200kΩ 100Ω ±(1.0% of reading + 5 digits) 2MΩ 1kΩ ±(1.0% of reading + 5 digits) 20MΩ 10kΩ ±(1.5% of reading + 5 digits) Overload Protection DC 300V or AC 300V true rms Diode and Continuity Test Diode Display the approximate value of the forward voltage drop of the diode Test Conditions Test current is about 0.6mA, open circuit voltage is about 2.1V Buzzer Test resistance is less than 50Ω Buzzer Continuous Sound Test Conditions Open circuit voltage is about 2.1V Overload Protection DC 300V or AC 300V true rms Light-Emitting Diode (LED) Test LED Display the approximate value of the forward voltage drop of the LED Test Conditions Test current is about 1.0~2.0mA, open circuit voltage is 3.7V Overload Protection DC 300V or AC 300V true rms value Battery Test Battery Accuracy ±(0.8% of reading + 5 digits) Test Conditions Load current about 10mA Test Range 1.2V~15V Overload Protection 250mA/250V fast fuse