Gain Express Sound Level Meter Acoustical Calibrator 94dB & 114dB output levels for 1 inch and 1/2 inch mic

Description

Features: Simple amp; Easy Operation Digital Display with Backlight, Clearly Shows the Chosen dB Level Lightweight and Small Size Removable 1/2 Transducer Cap, Suitable for 1 and 1/2 Microphone Size Conforms to IEC60942 (IEC942) Class 1 Standard. Solid Design Provides Accurate and Reliable Performance Suitable for Personal, Field and Laboratory use Specifications: Sound Pressure Level: 94dB amp; 114dB Accuracy: plusmn;0.3dB (20 deg;C, 760mm Hg) Frequency: 1000 plusmn;0.01% Hz allows calibration with A,B,C or D weighting networks or linear Microphone Size: 1 and 1/2 microphones Temperature Coefficient: 0~0.01 dB/ deg;C Standard: IEC60942 (IEC942) Class 1 Altitude Effects: Approximately decrease 0.1dB per 2000 ft increase in altitude from sea level to 12,000 ft elevation, or comparable atmospheric pressure change (approximately every 50mm of Hg decrease) Operating Temperature: 10~50 deg;C Storage Temperature: 40~65 deg;C(batteries removed) Power Supply: 2 x 1.5V AAA (excluded) Size: 137 x x51 x 51mm Weight: approx. 200g Set Includes: 1 x Sound Level Calibrator 1 x English Manual Standard Package