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Thank you for purchasing the Klang Tuner ST-2W Wind Instruments. Please read 
this manual carefully before using the product, and operate it in accordance 
with this manual. Please save this manual for future reference.

SAFETY INSTRUCTIONS

•  The device is not a toy. Keep it out of the reach of children and pets.
•  If you have questions which remain unanswered by these operating 

 instructions, contact us or other technical personnel. 

•  For cleaning all you need is a dry, soft and clean cloth. 
•  Do not use any aggressive cleaning agents, rubbing alcohol or other 

 inflammable, chemical solutions.

•  Do not apply excessive force to the switches or controls.

BATTERY USE

•  Make sure the polarity is correct when putting in a new battery.
•  Remove the battery when the unit is not in use for a longer period of time.
•  If the device is not working correctly, remove the battery and put it back in 

after 10 seconds.

•  Replace the battery if the LCD light becomes weak or unclear.
•  Dispose of the old battery properly.

CONTROLS AND DISPLAY

TUNER ST-2W

WIND INSTRUMENTS

OPERATION GUIDE

Insert the batteries into the back of the device. After turning it on, the device will 
be calibrated at A4 = 440 Hz.

1:  Button functions

a)  Power on/off: Press button 1 “On/Off” to turn the tuner on or off. The display 

and the LEDs will be lit and the device will be in tuning mode.

b)  If no signal is detected for 3 minutes, the device will turn itself off.

c)  The key can be changed successively by pressing button 2 “Mode”: 

C, D, Eb, F, Bb.

2: Tuning 

a)  Place the tuner’s microphone (MIC) close to the instrument so you can easily 

read the display. Connect your electrically amplified instruments using a 
6.3 mm  (1/4

"

) jack cable to the input to achieve better results. 

b)  Select the desired key using button 2. 

c)  Play the note you want to get in tune. The tuner recognizes the note auto-

matically and shows it in the display. 

d)  Once the tuner recongnizes a tone, it will be shown in the display with its 

name. If the pitch needle is left of the middle, the pitch is too low and a “b” 
will be displayed next to the note. If the pitch needle is right of the middle, 
the pitch is too high and a “#” will be displayed next to the note. Once the 
correct pitch is reached and the indication needle is in the middle, the 
display color will turn green.

3:  Change reference tone
 

By pushing button 3 “A4”, you can change the reference tone incrementally 
from A = 430 Hz  to A = 450 Hz.

TECHNICAL DATA

•  Tuning keys: C, D, Eb, F, Bb
•  Tuning  range:  B0 – B7
•  A4  calibration:  430 Hz – 450 Hz
•  Tuning via internal microphone or input
•  Tuning tolerance: ± 1 cent 
•  Power supply: 2 x AAA batteries

DISCLAIMER

Technical specifications and appearance are subject to change without notice.

INFORMATION OBLIGATION FOR THE DISPOSAL OF BATTERIES

According to § 12 par. 1 No. 1-3 BattV (Regulation for the return and disposal 
of used batteries and accumulators (BattVO) dated March 27, 1998 (BGBl. I 
S. 658)) we as seller inform that the customer as end consumer is obliged to 
return used batteries by law. Batteries can be returned free of charge after use 
to the seller or to his waste disposal centre in his direct vicinity. If batteries are 
sent to the seller, sufficient postage is to be paid. The the symbol of the wheel 
bin means that the batteries contain heavy metals and harmful chemicals that 
may not be disposed of in household or commercial waste. The abbreviations 
under the symbol mean: “Cd” (Cadmium), “Pb” (Lead), “Hg” (Mercury)

DISPOSAL ADVICE FOR EEE-ARTICLES

Our customer is obliged to return the EEE-article after its lifespan separately 
from the household or commercial waste. EEE-articles can be returned free of 
charge after use to the seller or to his waste disposal centre in his direct vicinity. 

session GmbH & Co. KG, Wiesenstraße 2-6, 69190 Walldorf, [email protected] 
WEEE-Nr.: DE 14977334

Button 1
On/Off

Button 2
Mode

Button 3
A4

Input

Accuracy 

indication lights 

Display screen 

Tuning mode 

Output

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