LCD Digital Multimeter DC AC Voltage Diode Freguency Multitester Volt Tester Features: 1.The meter is a hand held 31/2digital multimeter for measuring AC/DC voltage and AC/DC current, resistance, diode , transistor, freguency, temperature and continuity test with battery operated. 2. Fit for schools, factories, families and amateur wireless lovers 3. Small and compact design 4. A great electronic measuring instrument 5. The back light of display is optional Specifications: 1. Protective Tube: F500mA/250V 2. Power: 9V NEDA1604 or 6F22 Battery (Not included)3. Display: LCD, 1999 counts, updates2-3/ect. 4. Measuring method: Dual-slope integration A/D converter 5. Overrange Indication: Only figure "1"on the display 6. Polarity Display: "-" for Negative Polarity 7. Working Temperature: 0-40 °C 8. Storage Temperature: -10°C-50°C 9. Size: 31.5*91*189mm 10. Weight: 280g Package includes:1 x A830L MINI Pocket Hand-held Digital Multimeter 2 x Probe