Castle Sound Level Meter 20kHz 67 → 140 dB

  • RS Stock No. 909-1897
  • Mfr. Part No. GA257B
  • Manufacturer Castle
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Castle GA257B Sonus Personal Noise Exposure Meter

Castle GA257B is a high specification personal sound exposure meter fully compliant with IEC 61252-1. It is designed for industrial safety officers and safety managers, for compliance with ’The Control of Noise at Work regulations 2005’, and is especially suited for users who move around in the execution of their work. This meter gives simultaneous Lex (sound exposure) and peak measurement for assessments to the Control of Noise at Work Regulations 2005. It has a high specification measurement microphone and is cased in tough, crack-resistant ABS plastic.

Simultaneous measurement of Lp, Leq, Zpeak, Lep,d, Dose, Dose / Hour, Pa2H
'A' frequency weighting
'Slow' Time weighting
Sound pressure (Lp) to 0.1dB resolution
Integrated equivalent level (Leq) measurement
Personal sound exposure level (Lep,d)
Noise dose%, Noise dose per hour%, Pascal squared hours
Zpeak - maximum Z weighted peak level
Elapsed time (running time hrs, min, sec)
Over Load and Under Range indication
Housed in tough, crack resistant ABS plastic
Dimensions 60mm x 30mm (excluding pocket clip) x 135mm (210mm with microphone)
Weight 200g (without battery)


IEC 61252:1993

Attribute Value
Maximum Sound Level 140dB
Minimum Sound Level 67dB
DOSE Measurement Yes
Weighting A
Display Type LCD
Battery Type Alkaline, PP3
Data Logging Yes
Interface Type USB
Maximum Frequency 20kHz
Minimum Frequency 1 Hz
Temporarily out of stock - back order for despatch 25/11/2019, delivery within 4 working days from despatch date
Price Each
MYR 2,829.99
Per unit
1 +
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