Fangrui Product Details 1. Bside A40 Infrared Thermometer Electric Pen Type Intelligent Multimeter Vfc Inverter Voltage Tester 2. Frequency (hz): 0-200khz (0-30vac); 0-1000khz (0-600vac) 3. Operation Mode: Automaticmanual 4. Display Range: 0-4000 Counts 5. Ac Voltage: 0-600v (ac Mode); 0.8-600v (auto Mode); 10-600v (vfc Mode) 6. Measuring Resistance Range: 0-4000 Ohm; 4000-40 Megohm 7. Power Supply: 2 X 1.5v Aaa Batteries (not Included) 8. Shell Material: Plastic 9. Multimeter Weight: About 77 G 10. Size: About 19 X 3.1 X 3cm 11. Packing List: Multimeter X1; Test Cable X2; Screwdriver X1; Carrying Bag X1; User Guide X1 12. Features: 13. Intelligent Multimeter, Lcd Screen, Clear Display, Easy To Take And Read Data, Lightweight And Portable 14. Automatic Detection, Function, Fast Test, Accurate And Effective, Comfortable To Use 15. Measurement Functions: Resistance, Ac Voltage, Dc Voltage, Temperature, Etc. 16. Convenient Battery , Long Life, Low Energy Consumption 17. When Checking The Circuit Connection Or Disconnection, By Sensing The Strength Of The Signal, The Buzzer Emits Alarms Of Different Frequencies 18. Intelligent Upgraded Chip, Non-contact Voltage Detection, Line Break Point Induction Search, More Secure And Not Hurt The Line 19. Zero Fire Line Identification, One-key Measurement, Say Goodbye To Cumbersome, Insulated Operation, Safe Electricity Checking 20. Continuity: If The Resistance Is Less Than 50 Ohms, The Buzzer Will Sound 21. Application: Applicable To Mechanical Repair, Electricians, Household, Automotive Repair, Etc.