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Martindale SP79 Class 2 Sound Level Meter

Martindale
SKU: MARTSP79
  • Measure sound from 30dB to 130dB over three overlapping ranges
  • Ideal instrument for performing Noise at Work Risk assessments
  • Suitable for min/max recording over longer periods
More Info
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Martindale SP79 Class 2 Sound Level Meter

The Martindale SP79 Class 2 Sound Level Meter can measure sound from 30dB to 130dB across three separate operating ranges: 30dB to 90dB; 50dB to 110dB; and 70dB to 130dB. It has a maximum dynamic range of 60dB and the Class 2 microphone picks up sound with frequencies between 20Hz and 8kHz. Frequency weighting can be set as A or C whilst response time can be set as fast or slow. Readings are accurate to ±1.4dB meaning that the meter can be used for Noise at Work risk assessments in offices and industrial environments.

Results are shown in decibels on the Martindale SP79’s LCD display alongside a dynamic analogue bar graph display which updates ten times a second. Operation via the simple push buttons and intuitive menus is extremely straightforward and it is possible to mount the sound meter on a tripod for longer term min/max monitoring. AC and DC outputs allow more detailed recording.

Weighing just 185g and with a battery life of 60 hours, the Martindale MARSP79 is ideal for carrying around and measuring noise exposure throughout the day. It comes supplied with detachable wind muffler and hard carry case.

Martindale part number: MARSP79

Key Features

  • Measurement ranges: 30dB to 90dB; 50dB to 110dB; and 70dB to 130dB
  • Dynamic range: 60dB
  • Accuracy: ±1.4dB
  • Ideal for Noise at Work Risk assessments
  • Class 2 microphone
  • Clear LCD screen
  • Min/max measurement
  • Battery life: 60 hours

What's In The Box?

  • Martindale SP79 Sound Meter
  • Wind muffler
  • Hard carry case
  • Instruction manual
Specification

MEASUREMENT

  • Measuring level range: 32 – 130dB
  • Frequency range: 20Hz – 8kHz
  • Frequency weighting: A or C
  • Level ranges: Lo: 30 – 90dB; Med: 50 – 110dB; Hi: 70 – 130dB
  • Accuracy: ±1.4dB (at reference conditions)
  • Dynamic range: 60dB
  • Time weighting: Fast or slow
  • Microphone: ½ inch electret condenser microphone
  • AC output: 1 Vrms at full scale (full scale is the upper limit of the selected level range)
  • DC output: 10mV/dB

GENERAL

  • Display: Liquid crystal display, Digital, 4 digits, updates 2/sec, bar-graph, 30 segments, updates 10/sec
  • Power: 1 x 9V, PP3 alkaline battery (IEC 6LR61, NEDA 1604A)
  • Continuous operating time: 60 hours typical (alkaline battery)
  • Auto power off: after approx. 30 minutes
  • Dimensions: 258(L) x 55(W) x 25(D) mm
  • Weight: Approx. 185g including battery
  • Includes: 1 x 9V battery, windscreen, storage case, instructions

ENVIRONMENTAL

  • Operating temperature: 0°C to 40°C
  • Relative humidity: 10 to 90% R.H.
  • Storage temperature: -10°C to 60°C
  • Relative humidity: 10 to 75% R.H.

FUNCTIONALITY

  • Complies with BS EN 61672-1 Class 2

EMC

  • Conforms to BS EN 61326-1