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.SpecificationRange Selection: Auto & Manual RangingMax Display 6000Sample Rate: 3 times/sVoltage: 600mV 1000VAC Voltage: 6V 750VCurrent: 60uA 20AAC Current: 6mA 20AResistance: 600ohm 60MohmCapcitance: 9.999Nf99.99mF ( Auto range )Frequency: 9.999Hz9.999Mhz ( Auto range )Duty cycle: 0.1%99.9%Temperature: -20-1000 (-41832)Auto LCD Backlight: YesOverload protection: YesData Hold: YesDiode Test: YesLow Battery indication: YesAuto power off/: YesTrue RMS: YesRelative Value: YesContinuity Test: YesNon Contact AC Voltage (NCV) detectionSelf-Locking ProtectionPackage ListDigital Multimeter BT-770N x1English manual x 1Test leads x1Temperature test probe x 1Transport case x 1