This is a brand new CEM DT-8852 CE 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. 

• Conforms to the IEC61672-1 Class 2 and ANSI S1.4 Type 2 standard for sound level measurement

• MIN and MAX sound level hold 
• Over range / under range display
• A & C frequency weighting
• Fast (125ms) and slow (1s) time weighting
• Analog AC/DC output for connection to frequency analyzer or X-Y shaft recorder
• Built-in memory for stand-alone field recording
• USB interface for computerized digital sound level recording

Lo:     30 - 80 dB

Med:  50 - 100 dB

Hi:     80 - 130 dB

Auto: 30 -130 dB

Slow: 1 sec

DC : 10mv/dB