Sound Level Meter

Display: 14 mm (0.55") LCD with backlight

Parameters measured: Lp, Lmax, Leq, LN.

Measurement range:

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

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

LN: 0-100%

Resolution: 0.1 dB

Accuracy: ±1 dB

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

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

Microphone: 1/2 inch electret condenser type

Memory: 30 groups with measuring conditions

Built-in calibration signal: 94 dB at 1 kHz (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: 4 x 1.5 V AAA (UM-4 battery)