New 30 ~ 130 dB Decibel Noise Digital Sound Level Meter Bluetooth Test

Standardisation: IEC651 Type 2 , ANSI S1. 4 Type 2 PC interface: Bluetooth + CD Software Support WIN 8 Function: Lp, Leq, Lmax, LN. Parameters measured: Lp, Leq, Lmax, LN. Measurement range: Lp : 30~130dB (A) , 35~130dB (C) , 35~130dB (F) Leq : 30-130dB (10s, 1m, 5m, 10m, 15m, 30m, 1h, 8h, 24h interval) LN. : 0-100% Resolution: 0.1dB Accuracy: ±1dB Frequency range: 20.0 to 12,500Hz Frequency weighting: A, C and F (Flat) Built-in calibration signals: 94dB at 1kHz (sinusoidal) Memory: 30 groups max with measuring conditions and with Date and Time Stamping Time weighting: FAST 125mS , SLOW: 1 sec. DC output: 0~1.3V, 10mv/dB Microphone: 0.5 #34; Electret condenser microphone Display: 14mm (0.55 #34;) LCD Screen with backlight Built-in battery condition indicator Alarm: electron, adjusable, 30-130dB set, LED and optional relay contact (NC) output Power off: Manual or adjustable Auto Power off time Power supply: 4x1.5v AAA (UM-4 battery) or External 6V DC 100mA (not included) Size: 236 x 63 x26 mm Weight: 137g (excluding batteries) Comes with 1 x Professional Sound Level Meter 1 x CD Software 1 x Bluetooth 1 x Windscreen / Sponge Ball 1 x Shock Absorbent Carrying Case 1 x English Manual Standard Packaging Box