RADARCAN R-106 Manual De Usuario página 8

Human
Bat
Mosquito
Butterfly
Fly
Cockroach
Cricket
Dog
Grasshopper
Rodent
Dolphin
Mole
Others
The ultrasound waves fan out uni-directionally from the
MICE | COCKROACHES REPELLER HOME, like fluorescent
light. Hard substances (walls, ceilings, furniture, glass, etc.)
promote better spreading out of the sound waves, as they
bounce off these surfaces, whereas soft materials (cardboard,
curtains,carpeting, etc.) absorb the sound waves.
Audible Ultrasound
Table of
frequencies
within the
human hearing
range between
20 Hz y 20 Khz,
compared with
the approximate
hearing range of
different animals
and insects.