เครื่องวัดเสียง ราคาพิเศษ

Measuring Range: 30～130dBA
                 35～130dBC
Accuracy: ±1.5dB
Frequency Range: 31.5Hz-8.5kHz
Linearity Range: 50dB
AC/DC Output: √
Auto Power Shut Off: √
Low Battery Indication: √
Over Range Indication: √
Max Hold Function: √
USB PC Interface: √
Calendar function: √
Digit & Resolution: 4 Digits & 0.1dB
Time Weighting Selection: Fast/Slow
Microphone:1/2 Inch Electret Condenser Microphone                                                                                Memory: 512M
Frequency Weighting: A & C
Sampling Frequency :2 times/sec
LCD size: 30x50mm
Product Color: Ivory
Product Net Weight: 350g(include battery)
Product Size: 235x70x30mm
Power: 9V (Alkaline or DC Adapter)
Operating Temperature and Humidity: 
0℃ to 40℃ (32 to 104℉) 0 to 70% RH.