• Meets IEC 61672Type I requirements and offers superior accuracy for critical measurements 

• Triple range measurement, 40 dB steps with over/ under range indication 

• "A & C" frequency weighting 

• "Fast/Slow" time weighting 

• 1/2" electret condenser microphone 

• Internal 94dB/1kHz calibration 

• Large, easy-to-read LCD display 

• Data Hold and Max Hold 

• Low battery indication 

• AC output signal for use with dataloggers 

• 3.5mm dia. phone output terminal 

• Hard carrying case and batteries included (windshield ball must be ordered separately)

• Measuring Range: 30 to 70 dB, 60 to 100 dB, 90 to 130 dB 

• Resolution: 0.1 dB 

• Frequency Range: 31.5 Hz to 16.0 kHz Accuracy: 31.5Hz: ±2.0dB; 63Hz: ±1.5dB; 125Hz: ±1.5dB; 250Hz: ±1.4dB; 500Hz: ±1.4dB; 1kHz: ±1.1dB; 2kHz: ±1.6dB; 4kHz: ±1.6dB; 8kHz: +2.1dB to -3.1dB; 12.5kHz: +3.0dB to -6.0 dB; 16kHz: +3.5dB to -17.0dB 

• Frequency Weighting: A: "Human Listening"response for environmental sound level measurement; C: "Flat" response for checking machinery noise and sound level pressure of equipment 

• Time Weighting: Fast: 200ms; Slow: 500ms 

• Output Signal: 750mV AC rms 

• Display: 3-1/2 digit, 18mm (0.7") high LCD 

• Power Supply: 2 x 9V batteries 

• Dimensions: 260 x 87 x 36mm (10.2 x 3.4 x 1.4") 

• Weight: 450g (0.99 lb)