EXTECH 407760

USB interface for easy setup and data download 30 to 130dB range Datalogging capability up to 129, 920 records Selectable data sampling rate: 50ms, 500ms, 1s, 2s, 5s, 10s, 60s Records readings with real time clock Two start methods: programmed ( from PC) or manual 0.5 " electret microphone Includes 3.6V Lithium battery, Windows® compatible software, and windscreen For complete specs please download the product datasheet ( not available for some accessories) 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)