This is a mini multimeter, which has automatic identification design. Connect the test leads in parallel to the circuit, power supply, tested resistor. The meter automatically identify whether it is AC voltage, DC voltage or resistance, and shows the frequency on the screen.Features:1. Dual Mode: Multimeter supports auto mode and manual mode. Auto mode can automatically measure AC / DC voltage, resistance and continuity.2. Bright LED Flashlight: LED flashlight lets you test efficiently and comfortably anywhere, indoors and outdoors, day and night.3. Live / Neutral Wire Check: Safe and easy to distinguish the live / neutral wire by comparing the strength of the detected voltage, the wire that detect the stronger voltage signal is live wire.4. LCD Display: Greatly enhance the reading experience, the lighted up numbers and letters make it very easy to read, even in bright sunlight or poor light.5. Easy to use: Insert the red test lead into the "INPUT" terminal, black test lead into the "COM" terminal. The AC and DC voltage, resistance and continuity can be measured directly after startup.Note:1. Do not input voltages higher than 500V, showing higher voltage are possible, but it may damage the meter.2. When measuring high voltage, be careful to avoid electric shock.3. Disconnect the test leads from the circuit when completed measurement.4. Due to manual measurement, the size may be slightly different. Thank you for your understanding.5. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object.Specifications:Type: Without Zipper Case / With Zipper Case (Optional)Brand: BSIDEModel: A1Color: BlackShell Material: ABSDisplay: LCDMaximum Display Value: 2000 DigitsPolarity Indication: Self-indicating, '-' means negative polarityOver-range Display: 'OL' or '-OL'Sampling Time: The meter figures show about 0.4 secondsAutomatic Power Time: 5 minutesBattery Low Voltage Indication: LCD display symbolOperational Temperature: 0~40 / 32~104Storage Temperature: -10~60 / -4~140 Operating Altitude: ≤ 2000mBattery: 1.5V AAA x 2 ( Not Included )Automatic Measuring Range: YESFull Measuring Range Overload Protection: YESFlashlight: YESV-Alert (NCV): YESLive / Neutral Wire Check: YESBreakpoint Locate: YESAutomatic Identification: YESItem Size: 12.7*4.2*2.5cm / 5.00*1.65*0.98in (L*W*H)Packing Size: 20*8.5*4.5cm / 7.87*3.35*1.77in (L*W*H)Net Weight: 67g / 2.36oz ( without batteryGross Weight: 230g / 8.11oz Function Range Resolution Accuracy Input Impedance Maximum Input Voltage Red Backlight Alert DC Voltage 0V~500V (DC Mode) 0.5V~500V (Auto Mode) 0.01V ±0.8% + 3 counts 1MQ 500V DC & AC (RMS) >90V AC Voltage 0V~500V (AC Mode) 0.8V~500V (Auto Mode) 0.01V ±1.2% + 5 counts 1MQ 500V DC & AC (RMS) >90V Resistance 0~10M 1 ±1.2% + 3 counts / / /