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IMPORTANT SAFETY INFORMATION Please read these instructions carefully before use and retain for future reference. • Please operate according to this manual, otherwise the protection provided by the device will be impaired or fail. • Check the condition before using. If you find any cracking, breakage, damage or abnormality, or you consider the device broken, stop using the device immediately •...
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Level Range Select Button. Lo: 30 - 100dB. Hi: 60 - 130dB. Note: When “OVER” is indicated, the ranges witch to another range for measurement. MAX/HOLD Button. The “Max/Hold” position is used to measure the maximum level of sounds. The maximum measured level is up dated continuously.
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MAINTENANCE Changing the battery • To install or change the 9V battery, open the battery compartment. Replace only with the same type of battery. Cleaning the casing • Wipe using a damp cloth or sponge. Do not use solvents as these may damage the casing.
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