Mengshen Digital Sound Level Meter, Handheld Audio Noise Meter Tester with LCD Display Measuring 30 130dB (9V Battery Included)

[Sensitive Sensor] 0.5s response time, no contact. Can measure noise level under any circumstances, quickly display accurate measurement result. [LCD Display] Large clear LCD backlight display, easy for reading enen during night. Low radiation, reduce the damage to the eyes. [Accurate Measurement] Measuring Range 30~130dBA ; +/-1.5dB Accuracy with 0.1dB Resolution.r [Multi-function] Data hold function; Max/Min sound level measurement; 15 minutes auto power off, also has alarm function when voice level is up to 130dB. [Power Supply] Powered by a 9V Battery (Included), Manufacturer: Mengshen