Application: it is used to calibrate the sound level meters.

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: 10mm (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: 0.1 dB

Accarcy:1dB

Memory:  Maximum value (30groups)

Indicator: Low battery indicator

Alarm: electron

Connector:RS232C

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

Size: 236 x 63 x26 mm

Weight: 170g  (including batteries)

Standed delivery:

   1.Main Unit---------------1pc

   2.Carrying Case................1pc.

   3.Operation Manual..........1pc.

Optional Accessories:

   1.ND9 sound level meter calibrator

   2.RS-232 and software

   3.External rela

     4.Bluetooth  interface