Decibel Meter GM1351 Digital Sound Noise Level Meter 30-130dB,Handheld Decibel Noise Level Meter,Decibel Measurement Tester with LCD Screen Detector for Industry and Daily Life (Battery Included)

*Measurement range: 30dBA ~ 130dBA; Accuracy: ±1.5 dB; Frequency range: 31.5Hz~8.5KHz; Resolution: 0.1dB; Sampling rate: 2 times/second Digital display: 4 digits; frequency weighting: A; microphone: 1/2 inch electret condenser microphone Power: 9V battery (including battery) Working conditions: 0~40 10~80%RH; Storage conditions: -10~60 10~70%RH *Maximum/minimum sound level measurement * Weight: 144g (with battery); Size: 57 * 26 * 149mm * With a sponge ball to filter out unwanted signals. *package: 1 x sound level meter 1 x sponge ball 1 x English operation manual