3M 2100 Sound Level Meter

Display: 3 1/2 Digit Liquid Crystal Display. Level display indicates to 0.1 dB resolution. Annunciator is included for Battery Check.

Modes of Operation: Measures sound pressure level (SPL) or maximum level (MAX).

Linear Operating Range: 32 to 140 dBA, 38 to 140 dBC

Electrical Noise Floor: 25 dBA, 32 dBC typical

Frequency Weighting Networks: A and C

Meter Response: Slow and Fast

AC Output: Approximately 0 - 1 V AC RMS. 1000 ohm output impedance, 3.5 mm stereo jack

DC Output: Approximately 0 - 1 V DC RMS. Each 0.167V change equals l0dB (1 V/60dB). 1000 ohm output impedance, 3.5mm stereo jack

Detector: True RMS

Overload Indicator: A '+' sign in the display indicates overload

Temperature Accuracy: Within 0.5dB at 23°C; Within 1.0dB over the temperature range of -10°C to +50°C

Level Range Accuracy: +/- 0.7dB from 31.5 - 8000 Hz

Operating Temperature Range: -10°C to +50°C

Storage (less batteries): -20° to + 60°C

Operating Humidity: 0 to 95% relative humidity, non-condensing.

Battery Life: 9 Volt Alkaline, approximately 25-30 hours

Size: 2.8 x 7.6 x 1.3 inches (including mic)

Weight: 10.3 oz. (293 g.) including battery

Manual