Features: [Wireless Connection]: Wired to phone by wireless functionality and real-time data can be recorded, analyzed and processed by portable APP, with timestamps and curves. Dual HD display for easy readout. [Platform collaboration]: APP can connect four wireless universal clocks and simultaneously monitor the measurement data of the four universal clocks in real time. [Workshop & Automated Mode Integration Design]: Not only well suited to traditional manual switch operations but also well suited to beginner's non-switch operations. [True RMS multimeter]: This TRMS multimeter can measure temperature, capacitance, diode, continuity, NCV (noncontact voltage detection), Ohm, Hz, duty cycle, AC / DC voltage, AC / DC current, etc. [...]. [Protection shell]: It has a protective shell to protect it from impact, friction and impact. [Substitute bracket]: The substructure is convenient for manipulation and reading. Specifications: Display: 6000 counts DC voltage: 60mV / 600mV / 6V / 60V / 600V / 1000V (0.5% +3) AC voltage: 60mV / 600mV / 6V / 60V / 600V / 750V (1.0% +3) DC current: 600uA / 6000uA / 60mA / 600mA / 6A / 10A (1.2% +3) Alternating current: 600uA / 6000uA / 60mA / 600mA / 6A / 10A (1.5% +3) Resistances: 600 / 6K / 60K / 600K / 6M (0.5% +3); 60M (1.5% +3) Frequency: 100Hz / 1000Hz / 10kHz / 100kHz / 1000kHz / 10MHz (0.1 +2) Capacitance: 10nF (5.0 +20); 100nF / 1uF / 10uF / 100uF / 1mF (2.0% +5); 10mF (5.0% +5) Temperature: -20 ~ 1000C / -4~1832F Mission cycle: 1% - 99% Source: 1.5V AA * 2 Diode test: Yes Continuity: Yes Packages include: 1 x Wireless Universal Watch 1 probe 1 thermocouple 1 bag 1 x Usage instructions Note: The battery was not included in the package due to the Aviation Security Check.