Sound Level Meter Noise Tester decibel noise statistics analyzer

First, the characteristics in line with international standards: IEC651 Type2 Frequency range: 300Hz-8KHz instantaneous value measurement automatic and manual shifting record the maximum / minimum value of reading a manual lock / automatic shutdown. Second, the technical parameters: Range: A ambient noise: 40 ~ 130dB C mechanical noise: 45 ~ 130dB Resolution: 0.1dB Accuracy: ± 2dB Frequency weighting: A / C measuring gear: (4 files) 40-70dB, 60-90dB, 80-110dB, 100-130dB response time selection: FAST (fast) / SLOW (slow) Frequency range: 300Hz-8KHz Display: 3 1/2 digit LCD display and bar code, the screen size: 37x40mm Signal output: AC Signal output AC: 0.707Vrms operating / storage temperature and humidity: 0 ℃ to 50 ℃ <90% RH -10 ℃ to 60 ℃ <70% RH Dimensions: 57 x 230 x 44mm