Landtek SL5868P Sound Pressure Level Meter 130 dB Decibel USB

Features
-Multifunctional and wide measuring range with 30 ~ 130 dB and built-in calibration signal of 94 dB at 1 kHz (sinusoidal)
-Offers 4 measurement parameters: Lp (sound level), Leq (equivalent continuous A sound), Lmax (maximum sound level), LN (percent of all readings over alarm value set)
-With adjustable alarm set and an LED alarm output
-Permits 'A', 'C', or 'Flat' weighting choices and Slow / Fast response time
-Memory of 30 groups of measurement results
-Supplied with CD software and 2 cables for RS232 / USB connection
-Gathered data in meter can be saved, retrieved and deleted and downloaded or transfer to computer directly plus it can also be exported to MS excel
-With 0 ~ 1.3V, 10 mV/dB DC output and auto range selection
Specifications
-Display: 14mm (0.55") LCD Screen with backlight
-PC interface: CD Software + RS232C Jack-to-Serial Cable with FREE Serial to USB Adapter
-Parameters measured: Lp, Leq, Lmax, LN
-Function: Lp, Leq, Lmax, LN
-Frequency range: 20.0 to 12,500Hz
-Frequency weighting: A, C and F (Flat)
-Built-in calibration signals: 94 dB at 1 kHz (sinusoidal)
-Memory: 30 groups max with measuring conditions and with Date and Time Stamping
-Time weighting: FAST (125mS), SLOW (1 second)
-DC output: 0~1.3V, 10mv = 1dB
One Set Included
-1 x Sound Level Meter
-1 x Sponge Ball (installed)
-1 x Software CD
-1 x RS232C Serial Cable
-1 x USB to Serial Adapter
-1 x Instruction manual
-Standard Factory Package