9
OPERATING MANUAL
BUTTONS OVERVIEW
BUTTON
DESCRIPTION
SEL
REL
• Continuity/diode: short press (<2s) to cycle
through continuity and diode measurement.
• Hz%: short press (<2s) to cycle through
frequency and duty ratio measurement.
• ACV: short press {<2s) to cycle through
frequency and AC voltage measurement.
• ACA: short press (<2s) to cycle through
frequency and AC current measurement.
• °
C
°
F: short press (<2s) to cycle through Celsius
and Fahrenheit degree measurement.
• NCV: short press {<2s) to cycle through the
sensing range of EFHI and EFLo.
• In the off state, press and hold the SEL/REL
key, then rotate the function dial to turn on
the device. The product enters the non-sleep
mode, and the buzzer produces 5 beeps every
15 minutes, reminding the user to turn off the
product.
• Long press {>2s) REL key to enter/exit REL
measurement mode, LCD will display the REL
symbol (applied to V, mV, uA , mA , A, CAP, Ω
measurement).
OFF
A
• Press to tum on/off the auto backlight
HOLD
• Short press (<2s) and the displayed value will
be locked, and the LCD will display the “ Cl”
symbol ; short press again and the value will be
unlocked. Long press {>2s) this button to turn
on/off the flashlight
