Extech 407750
Type 2 Digital Sound Meter with RS-232

• Auto/Manual ranging from 30 to 130dB in 6 ranges
• Meets ANSI and IEC Type 2 standards
• A and C selectable frequency weightings
• Fast and Slow selectable response times
• Background noise absorber mode for machine noise measurements filters ambient noise
• Large 3 1/2 digit display with 0.1dB resolution with backlighting and analog bargraph
• Electret condenser microphone provides 1.5dB accuracy
• Min/Max plus analog output and tripod mount
• Max Hold latches maximum value on display
• RS-232 interface for capturing data directly on a PC, optional Windows® software