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- DC voltage: 200mV/2V/20V/200V (0.5%+3), 600V (0.8%+5)- AV voltage: 200mV/2V/20V/200V (0.8%+3), 600V (1.0%+5)- DC current: 200uA/2000uA/20mA/200mA (1.8%+5)- AC current: 200uA/2000uA/20mA/200mA (2.0%+5)- Resistance: 200/2k/20k/200k/2M (1.0%+3), 200M (1.2%+15)- Display: 3 1/2 digits LCD- Fuse protection: FF250mA/250V- Sampling rate: about 3 times/second.- Over range indication: "OL" displayed on the LCD- Polarity indication: "-" auto displayed.- Low battery indication: low battery mark displayed on the LCD- Battery: 2 x 1.5V AAA battery(not included)- Dimension: 128 x 61 x 25 mmPackage Contents1 x Dr. Meter Multimeter1 x User Manual