multimeter with large LCD display screen, can be used for voltage, resistance, capacitance and duty ratio test, which is multifunctional and practical, suitable for the professional, factory and family to use. Come on and try it, it will not let you down. Specifications: Material: ABS Color: black, red (optional) Type: S10, S11(optional) Power: S10: without battery, need connect with the USB cable to use S11: 1 * lithium battery, 800mAh (included) Direct current voltage measuring: ranges: 0.8V~620V Resolution: 0.001V Accuracy: (0.5% #43;3counts) Input impedance: 10M Maximum input voltage: 620V direct current and AC(RMS) AC voltage measuring: ranges: 2.2V~620V Resolution: 0.001V Accuracy: (0.5% #43;3counts) Input impedance: 10M Maximum input voltage: 620V Frequency range: 1KHz ( lt;10V), 6KHz (10V~600V) Resistance measuring: Ranges:1~999.9, 1K~60M Resolution: 0.1 Accuracy: (2.0% #43;5counts), (1.0% #43;3counts) Capacitance measuring: Ranges:1nF~999.9nF, 1uF~60mF Resolution: 0.001nF Accuracy: (6.0% #43;5counts), (3.0% #43;3counts) Frequency measuring: Ranges:1Hz~1KHz (ACV 2~10V), 1Hz~60KHz (ACV 10~620V) Resolution: 0.01Hz Accuracy: (1.0% #43;5counts) Duty ratio measuring: Ranges: 0.1%~99.9% (ACV 2~620V) Resolution: 0.1% Accuracy: (3.0% #43;5counts) Diode measure: within 3V Continuity: If the resistance lt;50, the bu-zzer sounds The temperature: Range: 0~50 Accuracy2 (update every 30 seconds) Package size: S10: 147 * 85 * 42mm / 5.8 * 3.3 * 1.7in S11: 169 * 95 * 44mm / 6.7 * 3.7 * 1.7in Package weight: S10: 180g / 6.3ounce S11: 320g / 11.3ounce Packing list: 1 * Multimeter (Optional) 1 * Probes 1 * User Manual