Integrating Sound Level Meter

We are offering integrating sound level meter.integrating sound level meter are providing by us those have wide range of technical information
features:
wide linearity range of 100db
32000 records data logging function
rs-232 interface
real time clock with calendar
specification
applicable standards :iec pub 651 type2, ansi s1.4 type2, iec804 type2
accuracy : +/-1.5db (ref 94db @1khz).
measurement item: spl, leq, sel, maxl, minl.
measurement level: 30db to 130db.
measurement frequency range: 31.5 hz to 8khz.
frequency weight: a and c.
time weight: fast and slow, impulse.
microphone: 1/2 inch electret condenser microphone .
digital display: 4 digit lcd , 0.1db resolution, updated every 0.5s.
quasi-analog bar indicator: 4-db steps, 100db display range, updated every 100ms.
display warning function over range indicator: displayed at the upper limit.under range indicator displayed at the lower limit.
analong ac / dc: output 2vrms ( at full scale ) , 10mvdc / db.
power supply : four 1.5v lr-6/aa size alkaline cell, ac adapter
battery life: about 28 hours.
operating temperature , humidity: 5 ~ 40 ºc , 10 ~ 90% rh.
dimensions: 265 (l) x 72(w) x 21(h)mm, ( 10.4" l x 2.8" w x 0.8" h )
weight approx. 380g.
accessories: instruction manual , battery , carrying case ,
adjustment screwdriver , software , wind shield, rs-232 connecting cable, 9 pin to 25 pin gender changer , 3.5 f plug.
optional accessories: microphone extension cable, tripod., sound - level calibrator