| Measurement Specifications |
| Weighting |
A, C and Z (FLAT) |
| Ranges |
A:28 to 130 dB (0 to 80 BD if 0dB function is active for 4431-1G)
C: 36 to 130 dB
Z (FLAT): 40 to 130 dB
C peak: 55 to 141 dB
Z (FLAT) peak: 60 to 141 dB |
| Time Weighting |
Fast, Slow, Impulse |
| Parameters |
Sound pressure level(Lp)
A-weighted sound pressure level(LA)
C-weighted sound pressure level(LC)
Equivalent continuous A-weighted sound pressure level(LAeq)
Sound Exposure level(LAE)
Maximum sound pressure level(LAmax)
Minimum sound pressure level(LAmin)
Percentile sound pressure level(5 freely selectable values、LAN)
Peak Sound Pressure level(Lpeak)
C- weighted Peak Sound Pressure level(LCpeak)
Power average of maximum sound pressure level in a given interval(LAtm5)
Impulse Sound pressure level(LAI)
Impulse equivalent continuous sound pressure level(LAIeq) |
| Standards |
ANSI S1.4 1983: Type 2
IEC 61672-1: Class 2 |
| General Specifications |
| Interface |
USB, Printer |
| Output |
1 Vrms (AC output)
2.5 V (DC output) |
| Power Supply |
4 AA Batteries or AC adapter |
| Operaing Environment |
14 to 122°F (-10 to 50°C), 30 to 90%RH with no condensation |
| Dimensions |
W 3.4″ x H 12.9″ x D 1.9″ |
| Weight |
1 lb (453g) |
| Warranty |
1 year |
| Standard Accessories |
Operation manual, SD card for data storage, Windshield,Carrying case, AA batteries, Hand strap, Calibration certificate |