TOOLTOP ET8198B/ET819DE Voice Control 4.4-Inch Touch Screen Smart True RMS Digital Multimeter Automatic Measurement with

Features Touch screen operation 4 4 inch large color screen True RMS measurement 6000 counts display VFC measurement used to measure variable frequency voltage frequency With function indicating compass automatic measurement function With jack indicator avoid jack errors Built in rechargeable lithium battery USB charging Only ET819DE Voice control function voice broadcast function Only ET819DE Specification AC voltage2V 20V 200V 750V± 0 8 10 DC voltage6V 60V 600V 1000V± 0 8 10 AC current400mA± 1 2 10 DC current400mA± 1 2 10 Resistance600Ω 6kΩ 60kΩ 600kΩ 6MΩ 60MΩ± 2 5 3 Diode1mA 3V On off test Capacitance10nF 100nF 1uF 10uF 100uF 1mF 10mF 60mF± 5 3 Frequency measurement10Hz 100Hz 1kHz 10kHZ 100kHz 1MHz 8MHz± 0 1 3 Frequency conversion measurement √Color screen √Touch the keys √NCV √Zero line live line test √Whole unit symbol √Backlight manual automatic off √True RMS measurement √Temperature °C °F 20 1000 °C 0 1832 °FFlashlight lighting√Display modeLCD displayMaximum display5999 3 5 6 Over range displaythe highest bit shows OL Low voltage display√Working environment 0 40 °CRelative humidity 80 Volume size 140x70x22mm length x width x height Weightabout 150g including battery