Extech 407780A Sound Level Meter with Datalogger

Overview

The Extech 407780A is an integrating sound level meter designed for professional acoustic measurement and documentation. It features a 4-digit LCD display with analog bargraph, datalogging capability for up to 32,000 records, and USB interface for data transfer to a PC. The meter meets IEC 61672-1 and ANSI S1.4 Type 2 standards, making it suitable for compliance testing, industrial monitoring, and environmental sound surveys.

Key Features

• 4-digit multifunction LCD with analog bargraph display
• Wide range measurement with 100 dB precise linearity
• Display modes: SPL, SPL MIN/MAX, SEL, and Leq
• A and C frequency weighting options
• Impulse, fast, and slow response settings
• Programmable integrating time
• Datalogging function with up to 32,000 records
• Real-time calendar and clock
• Built-in USB interface with included Windows datalogging software
• Analog and alarm output connections for external devices
• Tripod mount included
• Meets IEC 61672-1, 60651/60804 Type 2, and ANSI S1.4 Type 2 standards

Applications

• Workplace noise level monitoring
• Environmental sound surveys and compliance testing
• HVAC and mechanical equipment verification
• Product noise testing and certification
• Occupational health and safety assessments

Included Accessories

• Windscreen
• Adjustment screwdriver
• USB cable
• Windows-compatible datalogging software
• Battery
• Carrying case