Measurement range: 30 - 130 dBA, 35 - 130 dBC
Frequency response: 31.5Hz - 8.5kHz
Accuracy: ±1.5dB (sound calibration frequency, 94dB @ 1KHz)
Frequency Weighting: A or C Weighted
Digital Display: 3 large LED digital display
Resolution: 0.1 dB <100 dB , 1 dB > 100 dB
Display mode: fast and slow selectable
Microphone Type: Dia 6mm ECM Type
Alarm mode: Built with alarm buzzer
Operating voltage: USB DC5V 1A
Operating temperature and humidity: 32 - 104°F (0 - 40°C), 10 - 80% RH
Storage temperature and humidity: 32 - 140°F (0 - 60°C), 10 - 70% RH
Power supply: 5V 1A AC/DC adapter
Product Size: 8.70 x 2.60 x 1.28 inches (221 x 66 x 32.5 mm)