Sound Level Meter

Display : 14mm (0.55＂) LCD with backlight

Parameters measured : Lp, Lmax, Leq , LN.

Measurement range : 

Lp : 30~130dB (A);  35~130dB (C);  35~130 dB (F)

Leq: 30-130dB (10s, 1min, 5min, 10min, 15min, 30min, 1hour, 8hour, 24hour)

LN : 0-100%

Resolution : 0.1 dB

Accuracy: ± 1dB

Frequency weighting:'A', 'C', 'F' (Flat)

Time weighting : Fast (125ms); Slow (1 second)

Microphone:1/2 inch electret condenser type

Memory: 30 groups with measuring conditions

Built in calibration signal : 94dB at 1kHz (sinusoidal)

Frequency range : 20 to 12,500 Hz

Alarm value set : 30-130 dB

Alarm output : LED and optional relay contact (NC)

PC interface : RS232C 

Low battery indication

Power supply : 4x1.5v AAA (UM-4 battery)