Castle Group

SONIK-E Environmental Sound Meter

SKU: 01GA142E

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SONIK-E Environmental Sound Level Meter - A Lean, Green Measuring Machine

Ultra-low sound level detection with the SONIK-E, Environmental Sound Meter. SONIK-E is the pickup and go noise meter for any environmental noise assessor. It's solid and dependable and is our most robust sound meter yet making it perfect for your most rugged environments.

The Class 1 SONIK-E Environmental Sound Meter combines the latest noise measuring technology with our industry-leading product development experience.

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Using the SONIK-E Sound Meter from Castle
SONIK-E Sound Meter SONIK-E sound meter with windshield Using the SONIK-E Sound Meter from Castle

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Product Specification unless deselected above

Boxed Weight (kg) 0.300
Brand Castle Group
Application Environmental Noise
Noise Features Data Logging, Statistics
Class Class 1
Weightings A, C, Z
Measurement Parameters Leq, Lmin, Lmax, Peak, Ln, Lden
Available Outside the UK? Yes

Castle Sonik-E Environmental Sound Level Meter - Lean, Green Measuring Machine

Ultra low sound level detection with the SONIK-E, Environmental Sound Meter. SONIK-E is the pick up and go noise meter for any environmental noise assessor. It's solid, dependable and is our most robust sound meter yet making it perfect for your most rugged environments.

  • Ultra low noise measurement capability down to 20dB
  • Simultanously measures LAeq, LCeq and PeakC
  • A, C and Z Frequency Weighting

A Class 1 Sound Level Meter for Environmental Assessors

Part of the SONIK Sound Meter Range launched by Castle in 2018, the Class 1 SONIK-E Environmental Sound Meter combines the latest noise measuring technology with our industry leading product development experience.

Designed to be a valuable addition to any Environmental Assessors toolkit, the SONIK-E is capable of performing measurements for a variety of environmental noise applications, including BS 4142 Assessments, Boundary Noise, Construction Noise to BS 5228, Compliance Monitoring and Short Term Noise Assessments. For outdoor noise assessments where measurements are required for longer periods, a weatherproof casing system with weatherproof microphone housing is available.

Worry less about charging and more about measuring as SONIK-E has a massive 20 hour battery life and a large internal memory with storage for up to 4,000 result sets.

Your data is important, which is why SONIK works with both Cloud and PC based software that's both free and simple to use - giving you ultimate control over your data. Click the "Software" tab above for more information.

If you do end up with the occasional Noise at Work survey, then the SONIK-SE is an alternative that can turn its hand to that, and the SONIK-S is available if your  requirement is mostly in the Workplace.

SONIK-E Sound Level Meter Features:

  • Dedicated Low Measurement Capability down to 20dB
  • 4Mb internal flash memory, up to 4000 result sets
  • FREE Cloud based or PC software available (upgradeable)
  • 20-Hour Operation
  • Weatherproof system available with optional modem for long-term monitoring
  • Measures Lp, Leq, Lmax, LE, L10, L90, L(user)
  • Measures parameters simultaneously including LAeq, LCeq and PeakC
  • Under range and Overload indicators
  • Ultra-simple to use
  • A, C or Z frequency weighting selection
  • A, C or Z Peak Measurements
  • Slow, Fast and Impulse time weighting selection
  • Protective rubber boot available

SONIK - Sound meters that do exactly what you need them to

Technical Specification

Instrument Standards:

IEC 61672-1: 2002 Class 1 Group X


English UK, English US, Chinese, French, German, Italian, Portuguese Brazilian, Russian, Spanish, Dutch, Greek

Level Ranges:

Total Linear Range: 20 - 130 dB

Range Name

Linear Range

Peak Range


 20 - 90 dB

 40 - 93 dB


 40 - 110 dB

 60 - 113 dB


 60 - 130 dB

 80 - 133 dB

Noise Floor (Typical):

‘A’ Weighting < 8.0dB

‘C’ Weighting < 9.4dB

‘Z’ Weighting < 11.8dB

Frequency Range

1 Hz - 20 kHz (electrical characteristics)

Class 1: 10 Hz - 20 kHz (including microphone)

Microphone Preamplifier:

Low Noise, Removable Preamplifier

Measurement Channels: Two

Display: 2.4” Full Colour TFT 240x320 pixels



LP, LEQ, LMAX, LPEAK, LE, LAVG, TWA, Under Range, Overload

Percentiles: L10, L90 and either L1, L5, L50, L95, L99

Batteries: 4 x AA (1. 5V) - Typically 24 hours continuous use (screen settings dependent)



L10, L90 and either L1, L5, L50, L95, L99

External Power: Micro USB type B, 0.5A

Frequency Weighting:

‘A’, ‘C’ and ‘Z’

Combinations of ‘A’, ‘A’&’C’ simultaneous or ‘A’&’Z’ simultaneous available for Lp, Leq and Lmax



Temperature Operating Range: -10 to + 50ºC

Humidity: Up to 90% RH Non-Condensing

Time Weighting: ‘Slow’, ’Fast’ and ‘Impulse’

Connections: Micro USB type B


Class 1: ½” Pre-Polarized - Free Field (IEC)

Pressure (ANSI) Sensititvity (50mV/Pa)

Size and Weight


Including Pre-Amplifier:

260mm (H) x 67mm (W) x 26mm (D)

Excluding Pre-Amplifier:

184mm (H) x 67mm (W) x 26mm (D)

Memory: 4MB – Up to 4000 Data Intervals Maximum in one or multiple recordings


High Impact ABS plastic with membrane keypad



207g (Without Batteries

What's in the Box

  • SONIK-E Sound Level Meter Class 1
  • KG205 Sound Meter Windshield
  • Free dBDataLITE Software
  • Free TheCastleCloud Software Account


SONIK Sound Meters work with Secure Cloud or PC Based Software

You can analyse your data using either Cloud or PC Based software that's free and simple to use.

Cloud Software -

The SONIK sound level meters can be used with, a secure Cloud based noise analysis software that can be accessed from any device with a browser and an internet connection. Your data is secure and easily manageable, and has full noise analysis features.

  • Start Account Completely Free
  • Powerful Database System
  • Numerous Calculators
  • Customised Reporting
  • PRO Accounts available for increased storage and features

PC Software - dBdataLite

Having instant access to all of your data on one screen means better decision making and streamlined operation. With all the data on-screen, dBdata allows you to manage the data files, copy out the data you want and print reports directly to hard copy.

For increased functionality, there is the option to upgrade to the full dBdataPRO software, which gives the benefit of greater data-manipulation, graphical views and analysis for hearing protection, dose calculations and NR curves.

Model Comparison


Sound Meter Range >>

dBAir Sonik Sonus

Description >>

Top of the range sound level meters with extensive features, including WiFi Data Transfer and optional octave band analysis. Dedicated sound meters for Occupational and Environmental Noise assessments with very easy operation and impressive battery life. Proven and fully compliant sound level meters at an impressively low price.

Models >>

Click to visit the product page

GA141S GA141E GA141SE
GA142S GA142E GA142SE
GA116L GA116E GA116I
Safety Environmental Integrating
Voice Memo Recording
Audio Events Recording
1/1 Octave Bands
1/3 Octave Bands
Data Logging
Advanced Data Logging
USB Connectivity
WiFi Data Transfer
PC Software – Castle dBData
Cloud Software
Colour Screen
Download data as .CSV
(Percentiles) LN
Noise Exposure Pa2h
HSE Exposure Points
NA (Level exceedance count)
Battery Type
4 x AA (1.5v) 4 x AA (1.5v) 4 x AA (1.5v)
4 x AA (1.5v) 4 x AA (1.5v) 4 x AA (1.5v)
1 x PP3 (9v) 1 x PP3 (9v) 1 x PP3 (9v)
Battery Life *
8+ hrs 8+ hrs 8+ hrs
24+ hrs 24+ hrs 24+ hrs
8+ hrs 8+ hrs 8+ hrs
A weighting Noise Floor
16.0dB 16.0dB 16.0dB
16.0dB 8.0dB 16.0dB
18.6dB 12.0dB 32.0dB
C weighting Noise Floor
15.0dB 15.0dB 15.0dB
17.2dB 9.4dB 17.2dB
18.2dB 12.0dB 38.0dB
Z weighting Noise Floor
25.0dB 25.0dB 25.0dB
18.9dB 11.8dB 18.9dB
20.6dB 14.5dB N/AdB
1 or 2 1 1 or 2
1 or 2 1 1 or 2
1 or 2 1 1 or 2
Time History
Advanced Advanced Advanced
Basic Basic Basic
Basic Basic N/A
No. of Ranges
2 2 2
3 3 3
3 3 3
Total Linear Range
25 - 140 20 - 130 25 - 140
25 - 140 20 - 130 25 - 140
32 - 140 22 - 130 41 - 140
Frequency Weighting (A, C, Z)
A, C, Z A, C, Z A, C, Z
A, C, Z A, C, Z A, C, Z
A, C, Z A, C, Z A, C
Time Weighting (Fast, Slow, Impulse)
F, S, I F, S, I F, S, I
F, S, I F, S, I F, S, I
F, S, I F, S, I F, S
Memory Size
32GB+ 32GB+ 32GB+
4MB 4MB N/A+
  *Screen settings dependant Comparison chart R1

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