DT-815 Sound Level Meter is designed for noise project, quality control, illness prevention cure and all kinds of environment sounds measurements. It is applied to the sounds measurement at factory, school, office, traffic access and household, etc. This unit confirms to the IEC61672-1 class 2 for Sound Level Meter.   Features This unit confirms to the IEC61672-1 class 2 for Sound Level Meters MAX MIN measurements Over range display Under range display A C Weighting FAST SLOW response Digit LCD display with a resolution of 0.1dB , bargraph white backlight Readings memories   Size(HxWxD): 210mm x 55mm x 32mm Weight: 230g   Specifications Standard applied IEC61672-1 Type 2, ANSI S1.4 Type2 Accuracy ±1.4dB Frequency range 31.5Hz ~ 8KHz Dynamic range 50dB Level ranges LO:30dB~80dB Med:50dB~100dB Hi:80dB~130dB Auto:30dB~130dB Time weighting: FAST ( 125mS ), SLOW ( 1s ) Microphone 1/2 inch electret condenser microphone Resolution 0.1dB Reading display update 2 times/sec Bargraph display update 20 times/sec   Size(HxWxD): 210mm x 55mm x 32mm Weight: 230g Accessories : 9V battery, Carrying case and Gift box Related Products