Digital Sound Level Meter 30-130dB Noise Volume Meetinstrument Decibel Monitoring Tester Snel/Langza

Features: ? 1.LCD backlight for clear reading. 2.Wide measuring range:30~130dB. 3.Sound level measurement. 4.Min/Max/Hold current value. 5.Manual/auto shut off. 6.Protable and easy to use,suitable for sound quality control in factory,office,home,school and construction site. ? Specifications: ? ?Frequency weighting: A ?Frequency response: 31.5Hz-8KHz ?Level ranges: 30dB~130dB ?Response time : (FAST)125ms / (SLOW)100ms ?Overload indication:?<30dB(UN display) /?>130dB(OL display) ?Accuracy:? &pm;1.5dB(@1HKz Standard source) One-Year calibration period ?Auto power off:? Auto shout down after approx 10 minutes of inactivity ?Low battery:?<6V ?Sensor: 1/2 inch electret condenser microphone ?Power supply: 9V 6F22(not included) ?Altitude : 1800 Meter ?Pollution Lever:? Class II ?Operation temperature and humidity: 0~40a??/32~104a??? 45%-80%RH ?Storage temperature and humidity:? -20~60a??/-4~140a??? 45%-80%RH ?Dimensions:? 192mm x 53.8mm x 35mm ?Weight:? Around 169g
Package Included:

1 x?Sound Level Meter
1 x Carrying Bag
1 x Gift Box
1 x English Manul

Details Pictures : ?