sound level meter

Functions:
Frequency range: 31.5Hz~8KHz
Measuring Range: LP: 30~130dB (A)
LP: 35~130dB (C)
LP: 35~130 dB (F)
Leq: 30-130dB
LN.: 0-100%
Resolution: 0.1 dB
Accarcy: 1dB
Memory: Maximum value (30groups)
Indicator: Low battery indicator
Output: RS232C or bluetooth
Power supply: 4x1.5v AAA (UM-4 battery
Size: 236 x 63 x26 mm
Weight: 170g