Features: Basic Test Function: it including the measurement function of AC/DC voltage, resistance, on-off buzzer, and automatically switches to corresponding range, simple to use that ordinary users can easily operating. Compact Portable Size: measured size in 4.8*2.4*1 inch, the palm-size multimeter is smaller than your mobile phone that making it the perfect size for carrying around. Easy-to-read LCD Display: 4000 counts large-screen LCD display with backlight makes readings more clear and accurate. made of solid durable ABS material, the tester meets the safety standards of IEC61010 for 600V CAT II and pollution grade 2. More Specifications: Material: ABS Max. Display: 4000 counts DC Voltage: 0.8~600V(0.8%+5) AC Voltage: 1~600V(1.0%+5) Resistance: 0~40M(1.0%+10) Auto Power-off: 5 minutes Backlight Auto-off: 30s Illumination Auto-off: 30s True RMS: 45Hz~2kHz Conversion Rate: About 3s/second Working Environment: 0~40,