Digital noise level meter with circuit for suppressing background noise for measuring all types of sound levels in the environment, including noise levels in schools, offices, factories, traffic noise, household noise or for noise-reduction projects. Allows for manual or automatic selection of levels and measurements of minimum and maximum levels. Thanks to its built in USB port, the supplied 9 V mains adapter and stand, it is also suitable for permanent or long term measurement. Includes case, USB cable, Windows software, stand, 9 V mains adapter, 9 V battery and instruction manual.
Specifications:
Digital display: 4 digit LCD
Height of digits: 20 mm
Multi-functions display: 58x44 mm²
Digital display of measurement, measuring time, bar graphs plus overs and unders
Background lighting: blue
Applicable standards: IEC-61672-1 type 2, ANSI S1.4 type 2
Frequency range: 31.5 Hz − 8 kHz
Dynamic range: 50 dB
Level ranges: 30 − 80 dB (low)
50 − 100 dB (medium)
80 − 130 dB (high)
30 − 130 dB (automatic)
Resolution: 0.1 dB
Precision: ±1.4 dB
Response times: 125 ms (fast), 1s (slow)
Microphone: ½-inch, with electret capacitor
Display update: Twice a second
Analog output: AC/DC
Operating voltage: 9 V battery or 9 V mains adapter