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Thank You on purchasing your new Steren product.
This manual includes all the feature operations and troubleshooting necessary to
install and operate your new Steren´s Decibel Meter.
Please review this manual thoroughly
to ensure proper installation and operation
of this product. For support, shopping, and everything new at Steren, visit our
website: www.steren.com
HER-400
DECIBEL METER
IMPORTANT
Note: The illustrations, icons and screen shots shown in this manual are for reference
about the product. There may be differences due to updates. Please check our web site
(www.steren.com) to obtain the latest version of the instruction manual.
• Do not try to open the device, may cause damages and warranty will be void.
• Do not expose to extreme temperatures.
• Avoid dropping the unit as this may cause damage.
• Do not put heavy objects on the device or accessories.
• Do not expose the device or accessories to dust, smoke or steam.
• Clean with a soft, dry cloth.
• Calibrate the device before using it in case it has not been used for an extended period of
time or has been used in difficult environmental situations.
• When using this device in the wind, it is necessary for you to use the fi lter to make sure that
the wind does not affect your measurement.