AD-104 is a kind of high-
precision, economical and practical
screening audiometer. Can use for
hearing test when fitting high-
end hearing-aid and visiting
service. And also use for hearing
condition test of school, industrial and mining
enterprises, army, fahrschule, rehabilitation centre and deaf
training etc. AD-104 can conduct all standard
hearing-aid test, Language
hearing test and all special test
that depend on structure. The design of AD-104 is on the
base of a advanced 24 pixels
digital signal processing, can
produce high quality signal, and
own prodigious refractivity. Easy operation process. Can show
the current condition
clearly. button and selector are all
type of low noise. The voice
level, frequency and other
information could be showed on
the display clearly. Language input
signal can be provided by internal
or external microphone. It has a
function: when testing language
hearing, masking signal and
language signal can be provided
to the ears at the same time, that
is noise language testing. There have 3 output
option: standard
earphone (AC),bone
conduction (BC) and special
output (SF),can be connected to
free area megaphone or inserted
earphone. AD-104 can calibrate multiple
types of earphone at the same
time. AD-104 can be use as mobile
devices, and also as desktop. AD-104 use keyboard to intall
and operate, so it’s very easy to
handle. Display: There are two output LED on
both side of the disply, when the
selected detection signal transfer
to corresponding ear, the screen
would show. During the audio
detection, the up line of the
display would show the strength
that provide to left or right ear
by dBHL ration.
When testing, the test ear would
show“L” or “R” on the disply. Test frequency would show in the
middle of the screen. If cover the
opposite ear, it will show in the
opposite side. AD-104 Technical Index： Channel: Two independent
channel
Frequency: Air conduction; Bone
conduction and free sound field
11 standard frequency,125-
8000Hz, bone conduction 250-
6000Hz, error
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