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Mercury TSL01 Digital Sound Level Decibel Meter

£5999
RRP £6900
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Mercury TSL01 is a digital sound level meter (also called a decibel meter) for measuring noise levels across a wide range of settings. It reads from 30dB to 130dB with an accuracy of ±1.5dB, covering everything from quiet office spaces to loud industrial areas. The frequency range runs from 31.5Hz to 8.5kHz, and readings are shown in 0.1dB steps on a 4-digit LCD screen. It complies with the EN61326-1:2013 standard.

Inside is a 12.5mm diameter electret condenser microphone. You can switch between fast (125ms) and slow (1 second) response times, and choose A- or C-weighting depending on the type of noise you're assessing. A-weighting matches how the human ear responds to sound, while C-weighting captures more low-frequency content. Maximum and data hold functions let you capture peak readings or freeze a value on screen while you note it down.

This makes the TSL01 a practical tool for offices, industrial environments, airports and public buildings where you need to check or record noise levels. It runs on 4 x AA batteries, which are included, and weighs 308g with them fitted. The unit measures 256 x 70 x 35mm and arrives in a heavy duty plastic case with a windshield to reduce interference from moving air outdoors. It operates in temperatures from 0 to 40°C at 10-80% humidity.

Specification
Batteries 4 x AA (included)
Accuracy ±1.5dB
Frequency range 31.5Hz - 8.5kHz
Resolution 0.1dB
Operating temperature 0 to 40°C, 10-80% humidity
Storage temperature -10 to 60°C, 10-70% humidity
Weight 0.31KG
Dimensions 256mm x 70mm x 35mm
Measurement range 30dB - 130dB
Downloads

Product Manual

Frequently Asked

What noise range can the TSL01 measure?

It measures from 30dB to 130dB, with a stated accuracy of ±1.5dB and a resolution of 0.1dB.

What is the difference between A- and C-weighting?

A-weighting reflects how the human ear responds to sound and is common for general noise assessment. C-weighting captures more low-frequency content. The TSL01 offers both.

What do the fast and slow settings do?

Fast (125ms) reacts quickly to short bursts of noise, while slow (1 second) averages the reading over a longer period for a steadier value on the display.

Does it come with everything needed to start?

Yes. It ships with 4 x AA batteries, a windshield and a heavy duty plastic case, so you can use it straight away.

Can I hold a reading on the screen?

Yes. The meter has data hold to freeze the current value and a maximum function to capture peak levels during measurement.

What are its operating conditions?

It works in temperatures from 0 to 40°C at 10-80% humidity. Storage is rated from -10 to 60°C at 10-70% humidity.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Mercury TSL01 is a digital sound level meter (also called a decibel meter) for measuring noise levels across a wide range of settings. It reads from 30dB to 130dB with an accuracy of ±1.5dB, covering everything from quiet office spaces to loud industrial areas. The frequency range runs from 31.5Hz to 8.5kHz, and readings are shown in 0.1dB steps on a 4-digit LCD screen. It complies with the EN61326-1:2013 standard.

    Inside is a 12.5mm diameter electret condenser microphone. You can switch between fast (125ms) and slow (1 second) response times, and choose A- or C-weighting depending on the type of noise you're assessing. A-weighting matches how the human ear responds to sound, while C-weighting captures more low-frequency content. Maximum and data hold functions let you capture peak readings or freeze a value on screen while you note it down.

    This makes the TSL01 a practical tool for offices, industrial environments, airports and public buildings where you need to check or record noise levels. It runs on 4 x AA batteries, which are included, and weighs 308g with them fitted. The unit measures 256 x 70 x 35mm and arrives in a heavy duty plastic case with a windshield to reduce interference from moving air outdoors. It operates in temperatures from 0 to 40°C at 10-80% humidity.

    Specification
    Batteries 4 x AA (included)
    Accuracy ±1.5dB
    Frequency range 31.5Hz - 8.5kHz
    Resolution 0.1dB
    Operating temperature 0 to 40°C, 10-80% humidity
    Storage temperature -10 to 60°C, 10-70% humidity
    Weight 0.31KG
    Dimensions 256mm x 70mm x 35mm
    Measurement range 30dB - 130dB
    Downloads

    Product Manual

    Frequently Asked

    What noise range can the TSL01 measure?

    It measures from 30dB to 130dB, with a stated accuracy of ±1.5dB and a resolution of 0.1dB.

    What is the difference between A- and C-weighting?

    A-weighting reflects how the human ear responds to sound and is common for general noise assessment. C-weighting captures more low-frequency content. The TSL01 offers both.

    What do the fast and slow settings do?

    Fast (125ms) reacts quickly to short bursts of noise, while slow (1 second) averages the reading over a longer period for a steadier value on the display.

    Does it come with everything needed to start?

    Yes. It ships with 4 x AA batteries, a windshield and a heavy duty plastic case, so you can use it straight away.

    Can I hold a reading on the screen?

    Yes. The meter has data hold to freeze the current value and a maximum function to capture peak levels during measurement.

    What are its operating conditions?

    It works in temperatures from 0 to 40°C at 10-80% humidity. Storage is rated from -10 to 60°C at 10-70% humidity.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.