OWON B35(T) - Manual (Page 23)

5.Multimeter Features
18
Buzzer Feature
 Press the function key, the buzzer will sound “Be…” in short.
 One minute before Auto Power-off the buzzer will sound “BeBeBeBeBe” five times to
warn. Before it is shut off, the buzzer will sound a long ”Beee” then shut off.
 The buzzer will sound “BeBe…” continuously to warn when the measured DC voltage
is higher than 1000 V, AC voltage is higher than 750 V, or the measured DC/AC mV
mode is higher than 600.0 mV.
 The buzzer will sound long when the short circuit resistance is less than about 30Ω
during the continuity test.
 When the Bluetooth function is time out, the buzzer will sound “BeBe” two times.