a SOUND LEVEL METER
ª Range

: 37 to 140 dB SPL ( A)

37 to 140 dB SPL ( C)

42 to 140 dB SPL ( Z)

ª SPL Max

: 140 dB SPL

ª Peak max. Level : 143 dB

ª Measurement : SPL, Leq, TWA( 2) , Lmin, Lmax, Lpeak, Lpeak( max) Dose( 2) , Proj. Dose( 2) , Lep, d, E, E8, E40, SEA, Ln( 6) , Event Counters ( 3) ; ( 2 RMS, 1 Peak)
ª Data Storage : Flash Data Storage : 8MB standard, 128MB optional Communication to PC via USB2.0
ª Display

: High contrast monochrome black on white, 1/ 8th VGA 160 x 240 dot graphoc, 4 level grey-scale, bright white LED backlight
ª Keypad

: Silicone elastomer" quiet touch" with tactile feedback, 4 dedicated function keys, 3 context soft-keys and 5 navigation keys
ª Power

: Internal 4 AA cells, 1.5Volts each; alkaline, NiMH or photo-Lithium External, 5.0 ± % 500mA maximum, USB powered Battery life, approx 20 hours, depending on usage
ª Standards
: ANSI, IEC, CE, Compliant