Applicable standards:
IEC61672-1 - 2002 Class 1, IEC60651: 1979 Type 1
IEC60804 - 1985 Type 1, ANSI S1.4: 1983 Type 1
Measurement parameters:
SPL, Leq, SEL, MaxL, MinL, Ln (5%, 10%, 50%, 90%, 95%)
Accuracy: +/- 1.4dB (reference sound pressure 94dB @ 1KHz)
Measuring range: 25dB to 130dB
Dynamic Range: 60dB
Measuring frequency range: 20Hz to 8KHz
Frequency weighting: A, C and A-weighted under the low-frequency noise measurements of 20 to 200Hz
Time-weighted: Fast, Slow and Impulse
Microphone: 1 / 2 inch polarized condenser microphone
Measurement stalls:
6-speed: 25 ~ 80dB, 30 ~ 90dB, 40 ~ 100dB,
50 ~ 110dB, 60 ~ 120dB, 70 ~ 130dB
Digital display: LCD, 0.1dB resolution, a second display
Analog Display: Bar code instructions, 1dB resolution, 8 times per second display
Warning Display: overload indication
Low instructions:
More than stall ceiling display
Below the lower limit of display stalls
Analog DC output: AC (AC): 1Vrms at full scale, DC (DC): 10mV/dB
Current supply: 4 x 1.5V AC Adapter Battery
Battery Life: About 50 hours
Operating temperature and humidity: -10 oC to 50 oC, <90% RH (no condensation)
Size: 265 (L) x 72 (W) x 21 (high) mm
Weight: 380 grams (with battery)

Battery
Case
Screwdriver to adjust
Manual
Wind ball
RS232 interface cable
Headphone plug 3.5 f