BSIDE A40 Infrared Thermometer Electric Pen Type Intelligent Multimeter VFC Inverter Voltage Tester(English No Battery)1. Frequency (Hz): 0 200kHz (0 30VAC); 0 1000kHz (0 600VAC) 2. Operation mode: automatic manual 3. Display range: 0 4000 counts 4. AC Voltage: 0 600V (AC mode); 0. 8 600V (Auto mode); 10 600V (VFC mode) 5. Measuring resistance range: 0 4000 ohm; 4000 40 megohm 6. Power supply: 2 x 1. 5V AAA batteries (not included) 7. Shell material: plastic 8. Multimeter weight: about 77 g 9. Size: about 19 x 3. 1 x 3cm 10. Packing list: multimeter x1; test cable x2;