Extech 407768 Sound Level Meter with PC Interface, Type 2

DISCONTINUED ITEM-Replacement Model: Extech 407750 Sound Level Meter with PC Interface & Background Sound Absorber, Type 2

The Extech 407768 is a high accuracy sound level meter that meets Type 2 standards. It comes complete with Windows compatible software and has a built-in RS-232 interface for capturing data directly to a PC.

• High accuracy meets Type 2 standards (ANSI S1, 4-1983, IEC 60651, EN 60651)
• Auto/Manual ranging from 30 to 130dB in three 50dB ranges
• A and C selectable frequency weightings
• Fast and Slow selectable response times
• Large digital display with 0.1dB resolution
• Condenser microphone provides precision and stability
• MIN/MAX and Max Hold
• RS-232 interface for capturing data directly on a PC
• Analog AC output for connection to a recorder
• Tripod mount for field use (optional TR100 Tripod-sold separately)
• Complete with 9V battery, Windows® 95/98/NT/2000/XP compatible software, Serial cable, and carrying case

• OSHA compliance testing
• Machine noise evaluation
• Traffic noise measurements
• Community noise measurements
• Theater acoustic studies
• Stereo balancing

• Digital Display: 5 digit Autorange LCD
• Measurement Range: 30 to 130dB
• Resolution: 0.1dB
• Accuracy: ±1.5 dB @ 94dB for a 1kHz sine wave
• Microphone: 1/2” Electret Condensor
• Frequency Weighting: “A” and “C” type
• Time Response: Slow/Fast
• Measurement frequency range: 31.5Hz to 8KHz
• Analog output AC: 0.5V (full scale)
• Applicable Standards: ANSI S1.4-1983, IEC 61672 Class 2, EN 60651
• Power Supply: 9V battery
• Dimensions: 10.6 x 2.7 x 1.1” (268 x 68 x 29mm)

• Extech 407768 Data Sheet.pdf
• Extech 407768 User’s Manual.pdf