Fitments: This Multitester can be used for AC / DC test voltage, DC / AC current test, the strength of the electric current hfe (amplification DC) test frequency test valve test two-electrode, transistor test NPN PNP , etc. You can use the Multimeter multimeter Digital LCD can be used to Ohm AC / DC volt test and review all types of circuit boards display Auto polarity / Diode Test / Transistor P-N test junction / test Transistor HFE Auto turn off & Data hold function. Features: Large screen, easy to read Convenient and practical, suitable for beginners 50Hz square wave output as signal source in more places, such as factory, school lab, home hobby, machine repairing, etc. Technology features DCV: 200m-2000m-20-200-1000V 0.5% ACV: 200-750V 1.0% DCA: 2000u-20m-200m-10A 1.8% Resistance: 200-2000-20K-200K-2000K 1.0% Specification: Color: black, red, yellow, grey, blue LCD size: 62x34mm Max display: 1999 Low battery indication: yes Diode test: yes Transistor test: yes Continuity buzzer test: yes Square wave output:: yes Safey ensure:Overload protection function Power supply: one 9V 6F22 battery (No batteries included) Product size: 128mm*70mm*25mm Product weight:about 127g Package Included: 1 x AN8206 Digital multimeter (No batteries included) 2 x Test line 1 x Manual Item show