Castle GA 256 Sound Level Meter 20kHz 75 → 140 dB

  • RS Stock No. 447-9646
  • Mfr. Part No. GA256
  • Brand Castle
Technical Reference
Legislation and Compliance
RoHS Status: Not Applicable
COO (Country of Origin): GB
Product Details

GA256 Personal Noise Exposure Meter

A high specification personal sound exposure meter that is fully compliant with IEC 61252-1. This meter gives simultaneous Lex (sound exposure) and peak measurement for assessments to the Noise at Work Regulations 1979 and is especially suited more to mobile workforces. It has a high specification measurement microphone and is cased in tough, crack resistant ABS plastic.

Designed for Industrial Safety Officers and Safety Managers for compliance with Health and Safety at Work Act; Noise at Work regulation 1989. It is ideally suited for workers who move around in the execution of their job
Integrated sound exposure level (Lex or Lep’d) measurement
DOSE%, Projected DOSE% and Projected Lex functions
’A’ frequency weighting (toggle)
Simultaneous measurement of Lex, and Pmax
Elapsed time (running time hrs, min, sec)
Overload and under-range indication
Battery condition


For compliance with Noise at Work regulations and relevant international Standards, sound level meters should be calibrated before use and checked afterwards. See GA601 acoustic calibrator (Stock No 229-9448).


IEC 61252:1993

Attribute Value
Maximum Sound Level 140dB
Minimum Sound Level 75dB
Resolution 0.1 dB
Accuracy Class IEC 61252:1993
DOSE Measurement Yes
Weighting A, C
Display Type LCD - Backlit
Battery Type 9V
Fast/Slow Time Averaging Both
Maximum Frequency 20kHz
Maximum Operating Temperature +40°C
Minimum Frequency 1 Hz
Minimum Operating Temperature 0°C
Model Number p GA 256
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Price Each
£ 324.29
(exc. VAT)
£ 389.15
(inc. VAT)
Per unit
1 +
Not available for guaranteed pre 9am/10am delivery