1. The signal generator is small in size, has many functions, easy to operate and easy to carry.2. The key layout is reasonable, all functions have independent corresponding keys, easy to operate.3. Built-in battery, low power consumption, long standby time.Specifications:Voltage Range: 999.9mV/9.999V/99.99V/999.9V/9.999mV/99.99mV(0.5%+3)AC Voltage Range: 999.9mV/9.999V/99.99V/750V/9.999mV/99.99mV(1.0%+3)Current Range: 9.999A/999.9mA/99.99mA/9.999mA/99.99A/999.9A(1.0%+3)AC Current Range: 9.999A/999.9mA/99.99mA/9.999mA/99.99A/999.9A(1.2%+3)Resistance Range: 99.99/999.9/9.999k/99.99k/999.9k(0.5%+3), 9.999M(1.5%+3), 99.99M(3.0%+5)Capacitance Range: 9.999nF/99.99nF/999.9nF/9.999F/99.99F/999.9F(2.0%+5), 9.999mF(5.0%+5)Frequency Range(only measure to 100kHz under the ACV setting): 9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/5.000MHz(0.1%+2)Duty Cycle: 199% (0.1%+2)Temperature: -201000 (-41832) (2.5%+5)Material: ABS+TPELCD Display: 9,999 countsRange: Auto/Manual RangeSampling Rate: 3 times/second