Feature:1. Measure DC voltage and current, AC voltage and current, resistance, duty cycle, temperature, diode transistor, continuity, contact angle of car distributor and engine speed.2. With comprehensive overload protection, continuous buzzer. Support data storage and automatic shutdown.3. Suitable for automobile inspection and maintenance, engineering design, experimental test, production experiment, etc.4. Ideal automobile repairing and maintaining tool, compact size, lightweight and portable, easy to arry and store.5. Accurate measurement, simple operation, high-quality materials, shock-proof and drop-proof, ergonomic design, comfortable hand feeling.Specification:Item Type: Digital MultimeterMaterial: PlasticPower Supply: 6F22 battery (9V), 800mAh (Include) Specifications:DC V2 or 20 or 200 or 1000 V (0.5 percent and3)AC V2 or 20 or 200 or 700 V (1.0 percent and3)DC A20m or 200m or 20 A (1.0 percent and2)AC A20m or 200m or 20 A (1.5 percent and2)Resistance200 or 20K or 200K or 20M (1.0 percent and3)Temperature-40-1000 (1 percent and3)Duty ratio1 percent -90 percent TACH500-10000RPM 3 or 4 or 5 or 6 or 8CYL (1.5 percent and5)DWELL0-120 3 or 4 or 5 or 6 or 8CYL (1.5 percent and5)Diode testyesTransistor testyesContinuity buzzeryesData HoldyesAuto Power OFFyesLCD Maximum. Count1999Terminal sockets with automatic blocking systemyesTo avoid misoperation, mechanical protection device is applied to the current measuring jack. The "mA" or "20" A socket can be opened only when selecting current for measurement. Otherwise, they will be blocked to effectively avoid inserting wrong probe, enhancing the product safety and life.Full range overload protection.Continuity buzzerData holdAuto Power offHow to Use: Just connect the diagnostic device with the diagnostic cable..Package List:1 x Multimeter1 x Connect Cable2 x Detection Cable2 x Terminal 1 x Manual