... RS232 PC interface Sound Level Meter with RS-232C (SL-5868P)Model: SL-5868P Features: * Conforms with all the essential health and ... , LN. * Measurement range: * Lp: 30~130dB (A), 35~130dB (C), 40~130dB (F) * Leq: 30-130dB (10s, 1m, 5m, 10m, 15m ... * Weight: 170g (excluding batteries) Sound Level Meter with RS-232C (SL-5868P)