Kev ntsuas ntsuas ntawm Digital Decibel Detector xim LCD
1. Wind blowing across the microphone increases the noise measurement. Use the supplied wind shield ball to cover the microphone when applicable.
2. Calibrate the instrument before each use if possible. Especially if the meter has not been used for a long period of time.
3. Do not store or operate the instrument in areas of high temperature or humidity.
4. Keep meter and microphone dry.
5. Avoid severe vibration.
6. Tshem tawm lub roj teeb thaum lub ntsuas yuav tsum khaws cia rau lub sijhawm ntev.
