OUTEST MS6708 LCD Digital Audio Decibel Sound Noise Level Meter Monitor dB Meter Measuring 30 dB to 130 dB Logger Tester

Features:
Display: Digital Display & Analog Bars Display 
Auto range: ¡Ì 
Reaction rate: Fast/Slow Selection 
MAX HOLD: ¡Ì 
Back light: ¡Ì
  Low battery indication: ¡Ì 
Power Supply: 4 * 1.5V AAA Batteries(Not included) 
Category: CE RoHS 
Specification: 
Sound pressure accuracy: ¡À 1.5 dB (sound pressure standard, 94 dB @ 1KHz). 
Sound pressure accuracy: ¡À5 dB (sound pressure standard, 94 dB @ 8KHz). 
Sound pressure frequency response: 30Hz - 8KHz. 
Dynamic range of sound pressure: 50 dB (for each measurement gear level). 
Sound pressure measurement scope: 30-130 dB A, 35-130 dB C. 
Sound pressure frequency weighting characteristics: A and C characteristics. 
Dynamic characteristic of sound pressure: FAST 125ms, SLOW 1sec  Microphone: polarized capacitive microphone. 
Digital display: 4-digit, resolution: 0.1 dB, sampling rate: 2 times/sec. 
Analog bar display: Each analog bar represents 1 dB, sampling rate is 20 times/sec. 
Measurement gear level: 30-80 dB, 40-90 dB, 50-100 dB, 60¡ª110 dB, 70¡ª120 dB, 80-130 dB, 6 gear levels in total. 
Automatic shifting gear level: microcomputer will automatically select the 
best gear level in the range from 30 to 130 dB. 
Below or above limit prompt: indicated with ¡°UNDER¡± or ¡°OVER¡± display. 
Package size: 23 * 11 * 6cm / 9.1 * 4.3 * 2.3in 
Package weight: 329g / 11.6oz 
Package Content: 
1 * HYELEC MS6708 Digital Sound Level Meter 
1 * English Manual