Digital Sound Level Meter 30-130dB Noise Tester (A/C Weighting) Auto Decibel Meter

Overview: This handheld digital sound level meter measures environmental noise levels with A and C frequency weighting. It is CE/ROHS/FCC approved and runs on 4x1.5V AA batteries (not included). Key specifications: - Measuring range: 30dBA~130dBA, 35~130dBC - Accuracy: ±1.5 dB - Frequency range: 31.5Hz~8.5KHz - Frequency weighting: A/C - Digital display: 4digits - Resolution: 0.1dB - Measuring level selections: 30~130, 40~90, 50~100, 60~110, 80~130 - Linearity range: 50dB / 100dB - Sample rate: 2 times/second Outputs and microphone: - AC output: 0.707Vrms at FS output impedance approx. 600 ohm - DC output: 10mV/dB, output impedance approx. 100ohm - Microphone: 1/2 inch electret condenser microphone Power and environmental: - Power supply: 4xAA 1.5V Battery (not included) - Operating condition: 0~40 10~80%RH - Storage condition: -10~60 10~70%RH Certification and package: - Approved by CE/ROHS/FCC standard Package contents: - 1 x Sound level meter - 1 x Operation Manual - 1 x Sponge Ball - 1 x USB cable - 1 x Software CD