NHS & School Discounts Available: Please call for more information.

Martindale SP79 Class 2 Sound Level Meter

Be the first to review this product

  • 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

rrp £136.00

now £109.00 (Ex. VAT) £130.80 (Inc. VAT)

rrp £136.00

Please select a free gift below.

  • Description

    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
  • Specification


    • 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


    • 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


    • 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.


    • Complies with BS EN 61672-1 Class 2


    • Conforms to BS EN 61326-1
  • Supplied Accessories

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

    Please Sign in or Create an account to post a question.

    There are no entries.

  • Reviews

    There are currently no reviews for this product. If you have previously purchased it please leave a review using our quick and easy form to the right.

    Write Your Own Review

    Only registered users can write reviews. Please, log in or register

  • Delivery Information

    At Test-Meter.co.uk we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK:

    Test-Meter.co.uk exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail admin@test-meter.co.uk with your name, address and the items you would like to order for an accurate shipping quote or go to http://www.test-meter.co.uk/test-equipment-export for more information.

    For more information on delivery, please see our terms and conditions.