Compact battery operated digital Automotive Engine Analyzer and Multimeter. It measure DC/AC Voltage, DC/AC Current, resistance, capacitance, frequency, duty cycle, temperature, diode test, continuity test, Tachometer (RPM), dwell angle, Pulse Width (ms), analog frequency, duty, AC/DC voltage, resistance signal Output. Ideal for drivers, Auto mechanics, hobbyists and other car Enthusiast. Featured with safety protector streamline. Features: Patented product design and functions MAX/MIN/PEAK hold/DATA hold functions ACV True RMS Backlight Function Safety protector Range & Stroke Button Auto / Manual Ranging Auto / Manual Power Off Low Battery indication Overrange Indication "OL" Selectable °C/°F temperature unit Specifications: Display : 6000 digits LCD w/ 20mm high numerals Auto Functions: Auto-zero, Auto-polarity, Auto Range Auto power off: 15 minutes after stopping the switch Power Supply: single 9V battery (NEDA, 1604 or IEC 6F22) Reading Range Time: 3 reading per sec. (approx.) Maximum Common Mode Voltage: 500Vdc or ac peak Safety Standards: IEC1010 Double Insulation, Pollution degree 2 Over voltage Category: II Operating environment: 0~50°C (32~122°F) at ≤70% relative humidity Storage environment: -20~60°C (-4~140°F) at ≤80% relative humidiy Temperature Coefficient: 0.1 x (specified accuracy)/°C (≤18°C or ≥28°C) Fuse: 0.8A/250V, 5 x 20mm fast acting, 20A/250V, 6x30mm fast acting Battery Type: 9V(6F22) Dimension : 218 x 122 x 75mm Weight: Approx. 760g (including battery and hoister) (see pictures for Technical Index Specifications) Set includes: 1 x Main Unit Meter 1 x pair of Test lead 1 x Temperature Probe 2 x Pair of Alligator clip 1 x English Operating Manal 1 x Carrying pouch 1 x 9V Battery