Castle GA257L Logging Dosemeter Rental

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The Castle GA257L Data-logging Sound Level meter and combined Personal Noise Exposure Meter. There are 5 memories for data logging as well as having predictive parameters. They are tough and simple to use.

Alternatively, call 01723 584250 to arrange your booking


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1: Choose a Start Date

2: Choose Rental Duration

  • 1 Week
    £135.00 Selected
  • 2 Weeks
    £243.00 Selected
  • 3 Weeks
    £344.00 Selected
  • 4 Weeks
    £344.00 Selected
  • Short Term
    £81.00 Selected

For longer durations please contact us

3: Optional Extras

Add Damage Waiver +10% of total fee
Add Return Carriage Via Courier - £25


Total Price
Castle GA257L Logging Dosemeter Rental
Castle GA257L Logging Dosemeter Rental Castle GA257L Logging Dosemeter Rental

How do I book?

Booking is easy, choose your Rental Period, Start Date and any available accessories. After you click 'Add to Cart' and complete the checkout process we'll check your product is available and contact you to confirm your order.

The Damage Waiver is calculated at 10% of the cost of rental.

Return Carriage means we will arrange collection and return to us for £25.

Note that the Price shown here will reflect the instrument and Rental Period. Return Carriage and Damage Waiver costs will be added on the Cart and Checkout Pages.

Brand Castle Group
Application Noise at Work
Measurement Parameters Leq, Dose, Lep’d (LEX)
Available Outside the UK? Yes
This is the Sonus GA257L data-logging noise dosemeter which are designed to be powerful and easy to use. They are small and tough so measurements and data can be collected throughout the working period. The data can then be reviewed on screen or downloaded to a PC for further analysis. It is also fully compliant with IEC 61252:1993 which adds logging capabilities. It can measure sound pressure levels and Leq. The dosemeter has a clear and easy to read 8 character alpha numeric display, a soft-touch keypad, electronic security lock and instant calibration facility. It is sure to prove invaluable in a wide range of occupational applications. Features
  • Data logging in 5 memories
  • Downloadable to Software
  • Predictive parameters
  • Tough and simple to use
Parameters measured
  • User selectable Exchange Rate (3dB, 4dB or 5dB)
  • User selectable Criterion Level (75dB, 80dB, 85dB or 90dB)
  • User selectable Threshold Level (-5dB, -10dB or OFF)
  • Zpeak
  • % Dose
  • Lep'd (Lex)
  • % DOHR (Dose/Hour)
  • Pa2h (Lep'd expressed in Pascals)
  • Exposure Time
  • Lockable Keypad
  • Constructed from tough crack resistance plastic
The GA257L dosemeter also features
  • Lp (SPL)
  • Leq
  • Cpeak
  • LE (SEL)
  • Real Time Clock
  • Data-Logging
  • DC Power In
  • AC Output
Software needs to be rented separately.

Technical Specification

Standards IEC61252-1993 (Personal Sound Exposure Meters)
Linear Operating Range 70dB
Detector Characteristics RMS and Peak
Exchange Rate 3dB
5 dB
Criterion Level 75dB
Threshold Level -5dB
Peak 3dB above top of selected range
Display Custom alphanumeric LCD, digit size 7mm x 5mm
Memory 2100 Data Intervals Maximum
Calibration 91.0 to 120.0dB @ 1KHz
Batteries 1 x PP3 (9V) Approximately 12 hours continuous use
Operating Temperature -10 to + 50ºC
Humidity Effect < 0.5dB from 25% to 90% RH
Vibration No Effect on Instrument
Processing A to D Converter: 12-bit, 325kHz sampling. 8MHz, micro-controller
Dimensions 60mm (width) x 35mm (depth excluding pocket clip) x 135mm (height)
Microphone Cable Length 800mm (including rubber sleeve and microphone)
Weight 220g (including battery)
  • Emissions: EC 61000-6-3, EN61326-1:2006, CISPR 22:1997 EN55022:1998, FCC Rules, Part 15 2003 Class B
  • Immunity: IEC 61000-6-2:2005, EN61326-1:2005 Levels ±4kV (Contact), ±8kV (Air)
  • Amp Mod: IEC 61000-6-2:2005, Level 10V/m

What's in the Box

The GA257L Logging Dosemeter kit includes:

  • GA257L Dosemeter
  • GA601 calibrator
  • Software
  • KA010 attache case
  • Cables
  • Manuals
  • Windshield

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