Castle / NK106
dBAir GA141EO Environmental Assessment System 1/3 Octaves, Class 1
dBAir GA141EO (Class 1) Environment Sound Level Meter c/w Calibrator (Dual level, Class 1) (Includes GA690 Barometer), Pro Account for Castle Cloud (5 Users, 5 Instruments, 3 years only), Protective System Carry Case and dBAir Rubber Case
For high accuracy handheld outdoor assessments, employ this 1/3 Octave Band Analysis dBAir Environmental Assessment System. With a Class 1 Microphone and wireless data transfer, your highly accurate measurements will be waiting for you in your Castle Cloud Software account as soon as you log in. Dedicated measurement templates come as a standard in this system, providing you with extra reassurance that your assessments are on point.
Hand-held environmental measurements
Tonal Noise Assessment to 1/3 Octave
Boundary noise checking
BS4142 checks
Construction noise
Compliance testing
Technical Specification
| Applicable Standards | IEC 61672-1:2013 IEC 61260-1:2014 (Where Octave Bands Fitted) IEC 61252:1993 amendment 1:2000 (Where Exposure Fitted) | |||||||||||
| Microphone | Type 1 Pre-Polarised ½” (50mV/Pa) Condenser Microphone -26 dB ± 2 dB re 1V/Pa | |||||||||||
| Measurement Ranges | Linear Operating Range: 95dB | |||||||||||
| Noise Floor | Typical ’A’ WeightingFrequency WeightingsMeasurement 1: A, C or Z Measurement 2: A, C or Z | |||||||||||
| Frequency Range | 1 Hz - 20 kHz (electrical characteristics) 12.5 Hz - 20 kHz (including microphone) | |||||||||||
| Time Weighting | Measurement 1: Slow, Fast, Impulse Measurement 2: Slow, Fast, Impulse | |||||||||||
| Display | 2.4” Full Colour TFT 240x320 pixels | |||||||||||
| Dual Measurements | Simultaneous dual measurement with independent time and frequency weightings | |||||||||||
| Octave Band Analysis | Where fitted 1/1 or 1/3 octave band analysis on measurement 1 only. | |||||||||||
Measurement Parameters
| dBAir Environmental Octave: | LSPL, LE, LEQ, LMAX, LMIN, Peak, Ltm3, Ltm5, Lday, Lnight, Ldn, Lden, NA, 10 user-definable Ln values (pre-set to: L1, L2, L5, L10, L50, L90, L95, L98, L99) plus LAF* for Noise act assessment. 1/1 or 1/3 Octaves: LSPL, LE, LEQ, LMAX, LMAX, Ln’s, Peak. 1/3 Octaves. | |||||||||||
| Languages | English UK, English US, Chinese, French, German, Italian, Portuguese Brazilian, Russian, Spanish. | |||||||||||
| Time History | Short Interval: 10ms to 60m Long Interval: 1s to 24h Smart Timer, Duration Timer or Interval Timer Memory 16GB, 32GB, 64GB Input / Output Connection Micro USB Type B | |||||||||||
| Power | Batteries: 4 x AA (1.5V) Life: Up to 12 Hours continuous operation (screen settings dependent) USB Socket | |||||||||||
| Size and Dimensions: | Including Pre-Amplifier: 210mm (H) x 70mm (W) x 30mm (D) Excluding Pre-Amplifier: 145mm (H) x 70mm (W) x 30mm (D) | |||||||||||
| Weight | 480g approximately (including batteries) | |||||||||||
US 18678 
GB 14203 
CA 11790 
AU 9473 
IE 6386 
NZ 2542 
BR 1349 
SG 920 
