Máy đo độ ồn Tenmars TM -101 (30~130dB)

Specifications

• Display:3 1/2 digits LCD,resolution:0.1dB
• Standard applied: IEC 651 Type2, ANSI 1.4 Type2
• Frequency range:31.5Hz~8KHz
• Measuring level range :30~130Db
• Measurement item :SPL (sound pressure level)
• Frequency weighting: A/C
• Microphone :1/2 inch electret condense microphone
• Time weighting: Fast (125ms) ,Slow (1sec)
• Level ranges :Lo:30~80dB Med:50~100dB Hi:80~130dB
• Accuracy :±1.5dB (under reference conditions)
• Dynamic range: 50dB
• Alarm function :OVER is showing when input is more than upper limit of range UNDER is showing when input is less than lower limit of range
• MAX/MIN hold: hold readings the Maximum or Minimum value
• AC output:1Vrms at FS (full scale)
• DC output:10Mv/dB output impedance Approx. 100Ω
• Output impedance: Approx. 50Ω  FS: means the upper limit of each level range
• Low battery indication :replace battery as LCD display
• Power supply 9V NEDA 1604,IEC 6F22,JIS 006P battery 1pc
• Power life :about 30 hrs (alkaline battery)
• DC adapter: voltage 9V DC (8~13 VDC Max) supply current :>30m ADC
• Dimension:280x80x32mm (LxWxH)
• Weight :about 300g (including battery)