Prokit's Industries MT-1232 - Manual (Page 5)

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function must be in accordance with LCD display. Please be
sure to disconnect the line of the test lead with the measured
object first and ensure there is no any input signal. It is
forbidden to switch the function/range selection switch
during measurement
12. When “ ” is shown on LCD display, please replace
battery immediately to ensure the measurement precision.
13. It is not allowed to insert the test lead into the current
terminal to measure voltage!
14. Please don’t change the circuits of the meter freely for fear
that the meter will be damaged and the safety endangered.
15. Description of Safety Symbols
Warning! DCV
High
Voltage!
Danger!
ACV
DCA
Ground
ACA
Double
Insulation
In accordance with the
instruction of European
Trade Union
Low
Battery
Fuse