This instrument is compatible with several standards of GB/T 3785, IEC 651 Type 2, ANSIS 1.4 Type 2. It is widely used to test the sound level of environment, mechanic, vehicle, ship and other noise.Fit for industry environment protecting, working, sanitation, teaching search and other departments.
Display: 10 mm (0. 4") LCD (Liquid Crystal Display) Function: LP, Leq, LN Frequency range: 31.5Hz - 8KHz Measurement range: LP: 30~130dB (A) 35~130dB (C) 35~130 dB (F) Leq: 30-130dB LN. : 0-100% Resolution: 0. 1dB Accuracy: 1dB Memory: Maximum value 30 groups Detection characteristics: Fast / Slow Built-in calibration signal: 94dB Max. Hold function Alarm setting: 30-130 Connector: RS232C Auto power off Indicator: Low battery indicator Power supply: 4x1.5V AAA (UM-4) battery Size: 236x63x26mm (9.3x2.5x1.03 inch) Weight: 170g / 0.375lb (including battery) Standard delivery: 1. Main Unit: 1pc 2. Carrying Case: 1pc 3. Operation Manual: 1pc
Optional Accessories: 1. ND9-B sound level meter calibrator 2. Rs-232 and software 3. External relay