Bruel & Kjaer 2255 Sound Level Meter

The Bruel & Kjaer HBK 2255 Sound Level Meter is an innovative solution for measuring building acoustics and workplaces, determining product diagnosis and quality, and detecting environmental and gunshot noise. The compatible software associated with this device is also usable through a free app to help control, store, share, and process any measured data. The HBK 2255 complies with IEC 61672, ISO 3744, ISO 3745, and EN71-1 standards. The Bruel & Kjaer HBK 2255 Sound Level Meter is lightweight, user-friendly, and precise.

Product Info

Dimensions	With preamplifier and microphone: 281 x 68 x 37 mm (11.1 x 2.7 x 1.5 in) Without preamplifier and microphone: 213 x 68 x 37 mm (8.4 x 2.7 x 1.5 in)
Weight	With preamplifier and microphone: 409 g (14 oz) Without preamplifier and microphone: 367 g (13 oz)
Operating temperature	-25 to +70°C (-13 to +158°F)
Start-up time	From power off: <30 s
Logging	All parameters at intervals between 1 second and 1 hour
Dynamic range (From typical noise floor to max. level for a 1 kHz pure tone signal)	A-weighted 23.2 to 140.9 dB 31.1 to 140.5 dB
Single measurement range	15.8 – 140.9 dB(A) from noise floor to maximum level
Internal storage	16 GB
Standards	IEC 61672 ISO 3744 ISO 3745 EN71-1

Ideal for building acoustics, work place, product diagnosis and quality, environmental, and gunshot noise
Noise measurements requiring IEC 61672-compliant instrumentation
Single measurement range: 15.8 – 140.9 dB(A) from noise floor to maximum level
16 GB internal storage
Automatic measurement transfer to network or USB storage media for backup and analysis
Robust design for indoor and outdoor measurements (IP 54)
Wireless connectivity for remote control of measurements and data transfers
Simplified user interface using either the sound level meter or your iOS mobile device
Calibrator auto-detection
Windscreen auto-detection and compensation
Lightweight