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 สถิติวันนี้ 1221 คน
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เริ่มเมื่อ 2012-11-03

เครื่องวัดความดังเสียง dB (Digital Sound Level Meter)

Model: SL-824

ราคา 3,900 บาท


บริษัท เอ็นที อินโนเวชั่น จำกัด Tel. 02-8874664, 02-8870676 , Fax. 02-4960013

คุณเก๋: 087-9001168

คุณนัน Tel. 08-3434-7777 , 08-2520-2520



Product Description:

SL-824 is a digital multi-function Sound Level Meter designed to measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial and environmental. The device meets the measurement requirements of Safety Engineers, Health, Industrial Safety Offices and Sound Quality control in various environment. It features Bar-graph Indicating & Max Value Holding, built-in condenser mic and digital display. It accurately measures the sound level of just about anything from sound of level of environment to mechanic, vehicle, ship, loudness of computer fans and other noise with ±1.5 dB accuracy. It has the following advantages: 30~130dB range, with A/C weighting, fast/slow response, equipped with Max mode that captures and hold the maximum noise level, provides a windscreen for filter-out unwanted signals and a 9V battery with no extra charge. In almost all countries, the use of A-frequency-weighting is mandated to be used for the protection of workers against noise-induced deafness and the only weighting mandated by the international standard, the frequency weightings 'C' being optional fitments.

SL-824 is accredited by American National Standards Institute (ANSI) and the U.S. National Committee, the International Electrotechnical Commission (IEC) signifies that the device meets and comply with all the essential requirements of American National Standards. This handy, portable, lightweight and easy to use measuring instrument fits for industry, environmental protection, working, sanitation, teaching research and other departments.

Continuous high pressure levels can permanently damage the hearing capacity and even audio speakers. SL-824 with all its useful features helps us achieve and maintain a healthy environment. It so simple to operate, ANYONE can use it!


  • Completely conforms to the IEC651 TYPE 2 and ANSI S1.4 TYPE 2 set standards
  • Instantaneous sound measure function
  • Measurement range: 30-130dB
  • With two equivalent weighted sound pressure levels, A and C
  • With fast and slow dynamic characteristic modes
  • AC and DC signed output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.
  • Equipped with windscreen that filters the undesired or unwanted signal
  • With Bar-graph Indicating & Max Value Holding
  • Large LCD screen with 4-digit LCD display readings
  • With Tripod mounting provision on the back of the unit for field use
  • With FREE protective carrying case with contoured hardened foam inside fits the instrument securely. The device is sandwiched between hardened foam when closed to achieve optimum shock absorption


  • Sound Level: 30 ~ 130 dB With Level Selecting Button Switches
    • level 1: 30 ~ 80dB
    • level 2: 40 ~ 90dB
    • level 3: 50 ~ 100dB
    • level 4: 60 ~ 110dB
    • level 5: 70 ~ 120dB
    • level 6: 80 ~ 130dB
    • level 7: 30 ~ 130dB
  • Accuracy: ±1.5 dB
  • Frequency Range: 31.5 Hz to 8.5k Kz
  • Linearity Range: 50dB
  • Measuring Level: 30~130dBA, 35~130dBC
  • Frequency Weighting: A, C
  • Digital Display: 4 digits
  • Resolution: 0.1dB
  • Display: 0.5 secretary
  • Bar Graph: 50dB scale at 1dB step for monitoring current sound pressure level display period of 50mS
  • Level Ranges: 30~80dB, 40~90dB, 50~100dB, 60~110dB, 70~120dB, 80~130dB, 30~130dB
  • Over indicate over range: Under indicate less than lower limit of the range
  • AC output: 0.707 Vrms at FS output impedance approx 600 ?
  • DC output: 10 mV / dB output impedance approx 100 ?
  • Time weighting: Fast / Slow
  • Microphone: 1/2 inch electret condenser microphone
  • Max: Maximum hold
  • Power Supply: 6F22 9V alkaline cells (30 hrs life span) or DC 9V 100mA
  • Operating Temperature: 0°C to 40°C
  • Operating Humidity: 10% to 70% RH
  • Storage Temperature: -10°C to 50°C
  • Storage Humidity: 10% to 80% RH
  • Dimensions: 235mm(L) x 70mm(W) x 30mm(H)
  • Weight: approx 350g

ccessories included:

  • FREE 9V 6F22 battery
  • Sponge Ball or Windscreen
  • Sturdy & Protective Carrying Case with hardened foam lining for maximum shock absorption
  • User's Manual

Operating Information:

Handle the SL-824 meter with care, it is sturdy but don't forget it's also a precision device.


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