Dekko FM7911A Sound level meter ukur kekerasan tinggi suara FM-7911A

Sound Level Meter Dekko FM 7911A This unit adopts condenser microphone as the sensor, high configuration MCU calculation, high accuracy, fast response. This Sound Level Meter is designed to meet the measurement requirements of safety Engineers, Health, Industrial safety offices and sound quality control in various environments like factory, school, construction, etc. Ø High accuracy, fast response Ø Color LCD display with backlight Ø Temperature measurement Ø MAX、MIN Ø Data HOLD Ø Wide frequency range Ø Fast/slow time weighting Ø Over range indication SPECIFICATON Applied Standard IEC61672-1 CLASS2 Measuring level range 35dB ～ 135dB Dynamic range 50dB Frequency range 31.5Hz ～ 8KHz Accuracy ±2.0dB Frequency weighting A frequency weighting Time weighting FAST：125ms SLOW: 1s Microphone 1/2 inch electrets condenser microphone High/low reading indication ﹥100DB，LCD displays“Hi” ﹤100DB，LCD displays“LO” Temperature range -20℃ ～ 70℃/-4℉～158℉ Temperature accuracy ±1.5℃/2.7℉ Resolution 0.1 Data update 300ms Battery life over 60hours Auto power off The meter shuts off automatically after 15 minutes inactivity Battery 3*1.5V battery Operating conditions -20℃～60℃/-4℉～140℉,10%RH～90%RH Storage conditions -20℃～60℃/-4℉～140℉,10%RH～75%RH Dimension 144*56*30.5mm original dekko