Cem DT-8852 Digital Sound / Noise Level Meter & Data Logger

This is a brand new CEM DT-8852 certified digital sound / noise level meter. This meter has a built-in USB port which connects to a laptop PC for recording the sound level over a period of time. This is an ideal instrument for noise monitoring in factory, school, business and traffic areas. This meter conforms to the IEC61672-1 Class 2 and ANSI S1.4 Type 2 standards. With its internal memory, this unit can record sound level over a period of time without connecting to a computer. This device operates on a 9V battery (about 30 hours) or an AC adapter (included). It is very accurate ( /- 1.4 dB) and durable, an ideal companion for your field projects. A heavy duty carrying case is also included for the protection of the device and your convenience. Features This unit confirms to the IEC61672-1 CLASS2 for Sound Level Meters. MAX & MIN measurements Over range display Under range display A & C Weighting FAST & SLOW response USB PC Interface Analog AC/DC outputs for connection to frequency analyzer or X-Y shaft recorder Data Logging up to 32700 Data Points Alarm Function Technical Specifications Standard applied IEC61672 -1 CLASS2 Accuracy ±1.4dB Frequency range 31.5HZ ~ 8KHZ Dynamic range 50dB Memory 32700 Level ranges LO: 30dB ~ 80dB Med: 50dB~100dB Hi: 80dB~130dB Auto: 30dB~130dB Frequency weighting A/C Time weighting FAST (125ms), SLOW (1s) Microphone 1/2 inch electric condenser microphone Display 4 digits LCD display with a resolution of 0.1dB Display update 2 times/sec. MAX / MIN / DATA HOLD Yes Alarm function “OVER is when input is more than upper limit of range. “UNDER” is when input is less than lower limit of range. Analog output AC/DC outputs from earphone outlet AC = 1Vrms, DC = 10mV/dB Data output USB data traffic Auto power off Meter automatically shuts down after approx. 15 minutes of inactivity. Power supply One 9V battery, 006P or NEDA1604 or IEC 6F22. Power life About 30hours Operation temperature and humidity 0°C ~ 40°C, 10％RH ~ 90％RH Storage temperature and temperature -10°C ~ 60°C，10％RH ~ 75％RH Dimension 278 (L) x 76 (W) x 50(H) mm Weight 350g Package Included DT-8852 noise level meter Instruction manual Battery Screwdriver Earphone plug Windscreen Software USB cable Power Adaptor