For the price point USD $26 I'm not sure what is the main feature. Series 618A,B,C do not have current or thermocouple temp measurement but seem to have a big display, be slim AAA batteries and no more rotary switch, which I've never minded.
"Zero FireWire Induction recognition" seems to sense hazardous live/neutral using one probe lead (E-field). Looking forward to trusting my life to that. "Dididi" alarm is three beeps. They really need to run the marketing ad past someone technical who speaks English.
I don't see why it has to show its temperature all the time, and with two extra leading zeroes to further annoy you with this useless information 0024C. Frequency also, do I need to see 0060Hz all the time? The second LCD display seems to be a waste.