Selling my Lutron sound meter as surplus to my needs

Details : MODEL SL4023SD is a data logging sound level meter with a real-time clock with calendar, data recorder, sampling time set from 1 to 3600 seconds. No need to set up extra software, just take away the SD card from the meter and plug it into the computer.

Quick list of features:

• Fast weighting for normal noise
• Real-time data logging
• RS232/USB computer interface
• Auto range and Manual range selection
• A and C weighting for frequency noise
• Min / Max data hold record
• Slow weighting for fluctuating noise
• LCD with green light
• SD memory card Datalogger
• RS232/USB computer interface
• Frequency and time weighting meet IEC 61672 class 1

SPECIFICATIONS Measurement range: 30-130dB Dynamic range: 50dB Sampling rate: 1-3600 seconds Frequency range: 31.5 to 16 KHz Microphone: 1/2" electric condenser SD memory card: 1GB to 16GB (not included)

whats included: Sound Level Meter With Data Logging Carrying case Instruction manual