噪音计Sound Level Meter GM1351 自动背光显示

this e has been designed to meet the measurement re of safety engineers,health,industrial safety offices and sound control in various environment,which include factory,office,traffic,family,and audio system. this is an easy to use and handy mini sound level meter. designed for sound control that measures sound level from 30dba up ~ 130dba. it has auto range, wide measuring and frequency range (31.5hz ~ 8.5khz), maximum hold, frequency weighting a and auto backlight. just press one button readings are instantly displayed. a practical little tool great for noise pollution monitoring, home theater setup, health and safety compliance, vehicle noise testing, etc. auto backlight has a light sensor on top of lcd that detects environment lighting condition. lighting display intensifies as the environment lighting condition gets darker. the darker the enronment the brighter the illumination. also, it it reads in dba and provides windscreen to filter-out unwanted signals.

measuring range: 30 ~ 130dba accuracy: ±1.5db resolution: 0.1db frequency range: 31.5hz ~ 8.5khz frequency weighting: a sampling frequency: 2 times/sec digital display: 4 digits microphone: 1/2" electret condenser microphone auto power off low battery indication max hold function operating condition temperature: 0~40°c (32 ~ 104 °f) humidity: 10~80%rh storage condition temperature: -10~60°c (14 ~ 140 °f) humidity: 10~70%rh power supply: 1 x 9v battery (included) dimension: 55 x 32 x 149mm standard qty per export carton: 60pcs standard export carton size: 51*34*45cm standard export carton weight: 13.5kg