Meco Sndway Sw-525b Digital Sound Level Meter Noise Decibel Meter 30~130db Large Display Wall Hanging Type

Features: Measurement range: 30 ~ 130dB (dB) Accuracy: +1.5 dB (reference sound pressure level, 94dB @ 1kHz) Special Function: 1. Data storage function, for one year, 2 seconds per data 2. Data export function Dimensions: 210 x 130 x 30MM Frequency response: 31.5Hz ~ 8.5kHz Frequency weighting: A Response time: Fast Alarm switch indicator/Condenser microphone sensor Microphone: 1/2 inch condenser microphone Digital Display: 3pcs 3-inch digital tube display three Power supply: DC 5v 1A micro USB working environment: 0 - 40 degrees (32 degrees Fahrenheit to 104 degrees Fahrenheit) 10 - 80%RH Storage of Temp. and humidity: -10~60C. 10~70%RH Package Included: 1 x SW-525B Sound Level Meter 1 x DC 5v 1A Micro USB Cable 1 x CD with Software 1 x English User manual Detail Pictures: