Alat Ukur,agen Murah,usb,agen Extech 407760 Sound Level Meter

The Extech 407760 USB sound level datalogger has a 30 to 130 dB range with datalogging capability up to 129, 920 records. There is a selectable data sampling rate and readings are recorded with a real time clock. The Extech 407760 USB sound level datalogger has two start methods: programmed ( from PC) or manual. The datalogger also has 0.5 " electret microphone.
The Extech 407760 USB sound level datalogger ships complete with a 3.6V lithium battery, Windows ® compatible software, USB cover, tripod USB extension cable and windscreen.

Specification
Range 30 to 130dB
Frequency Range 31.5 to 8kHz
Basic accurancy ± 1.4dB
Weighting A and C
Response Time Fast ( 125ms) / slow( 1s)
Datalogging 129.920 points
PC Interface USB
Dimensions 5.1× 1.1× 0.9 " ( 130× 30× 25mm)
Weight 1oz( 20g)