This portable sound level meter itself can store over 20,000 groups measurement data, and also can be connected to your smartphone to check the real-time recording or export the historical data for fully analysis 4-digit LCD display with a resolution of 0.1 dB. Features with a Large screen makes the sound meter, noise decibel reader easy to use in dark condition. Backlit Alarms, MAX / MIN and data hold function such versatility gives you a great experience of use The Decibel meter is compatible with Android and iOS devices for data recording via the " dB Tester " app , allowing unlimited data transfer and management The measuring range of the decibel meter sound level reader is from 30dB to 130dB .Highly accurate with ± 1.5 dB. Real-time monitoring can give you accurate data on the sound level in the area The wireless db meter equipped with a 1/4inch mount thread for taking sound level measurements in various environments. Making it easy to carry and operate for extended periods without muscle fatigue, Weight: 0.440924524 Pounds, Manufacturer: Jaywool