Extech 407744 - 94dB Sound Calibrator

Description: 1kHz Professional Calibrator for 0.5" or 1.0" Microphones

Features:

• Calibrates and verifies Sound Level Meter operation
• Battery test position with battery status LED indicates if battery is good
• For use on Sound Level Meters with 0.5" or 1.0" microphones
• Durable die-cast, aluminum housing
• 1kHz sine wave at 94dB is generated to an accuracy of 5% (frequency) and ±0.8dB