EXTECH 407355 Máy đo độ ồn kết nối máy tính

Standards: Meets ANSI S1.25(1991) Type 2, ISO-1999, BS 402 (1983)

Range/Resolution: 70 - 140 dBA / 0.1dB

Digital Display: LCD 0.01-9999%

Criterion Level: 80, 84, 85, or 90dB

Exchange Rate : 3, 4, 5 or 6 dB

Threshold Level : 70-90 (1db steps)

Frequency weighting: A

Response Rate: Fast or Slow

High Level: Detector/Peak Flag 115dB / 140dB

Dimensions/Weight: 4.2 x 2.5 x 1.3" (106 x 64 x 34mm) 8oz. (227g) incl.batteries

Microphone:1/2 inch electret condenser with 31" cable

Battery Life:34 hrs

Event Storage: 5 surveys

RS232 Interface: yes

Real time clock: yes

 Manual

Datasheets