- Applicable Standards : JIS C 1502; IEC 651･804Type2
- Measurement Level : 28～130dB(A)、33～130dB(C)、38～130db(F)
- Frequency Range : 20Hz～10kHz （Conforms with measurement law：20Hz～8kHz）
- Microphone Type : TYPE 7052NW（Waterproof 1/2" electret condenser microphone）
- Level Range : 10dB step, 6 stages
- Linearity range : 100dB
- Time weighting : FAST、SLOW、IMPULSE
- Frequency weighting : A、C、FLAT
- Measurement time : 1s,3s,5s,10s,1min,5min,10min,15min,30min,１ｈ,8h,24h,Manual(Max.199h59m59s)
- Sampling Time : 20.8μs(Leq)、10ms(Lmax、Lmin)
- Lx Sampling Time : 100ms
- Display : Liquid crystal and Backlight(128×64 points)
- Measurement items
+ Sound pressure level(Lp)
+ Equivalent continuous sound pressure level(Leq)
+ Sound exposure level(Le)、Maximum sound pressure Level(Lmax)
+ Minimum sound pressure level(Lmin)
+ Percentile sound pressure level(Lx, 5 freely selectable values）
+ C-weighted Peak Sound Pressure level(LCPeak)
- Digital display
+ Display range:4digit display
+ Display cycle：display Period: 1s
- Bar display : Display Period:0.1s
- Warning
+ Over；+3dB from upper limited scale
+ Under；-0.6dB from lower limited scale
- Battery display : Battery 4 steps display
- Built-in memory : Calculated value is memorized in memory. (Approx.10,000 samples:1000 sets of results)
- Built-in calendar : year/month/day/hour：minute：second
- Pause : Pause and a function that deletes preceding 3 or 5 sec Data
- Calibration signal : Electric calibration with internal oscillator(1kHz sine wave)
- AC output : Output：1Vrms(F.S)、Output impedance：600Ω、Load impedance：more than 10kΩ
- DC output : Output：2.5V(F.S)、0.25V/10dB、Output impedance：50Ω、Load impedance：more than10kΩ
- I/O
+ Interface:RS-232C(asynchronous)
+ data bits:8bits
+ stop bit:1bit
+ parity:none
+ baud rate:4800, 9600, 19200bps（for printing, computer control and data transfer.）
- Battery Type
+ Four 1.5V size-AA batteries
+ Consumption current；When AC adaptor is used ；Approx.2.1VA
- Battery life
+ Alkaline batteries:20 hours, Manganese batteries:10 hours
+ when switch on a back light;Approx.1/3
- Operating temperature : Temperature：-10～50℃ Humidity：Unlimited
- Size : 85(W)×284(H)×46(D)
- Weight : Approx.420g(including Batteries)