Gracey & Associates Hire and Calibration
GRAS Microphones, Preamplifiers etc.,
We hire noise and vibration meters, supplied by the leading manufacturers and we have the most comprehensive range in the UK. All our meters, microphones, accelerometers etc., are delivered with current calibration certificates, traceable to UKAS. Our ISO 9001 laboratory is audited by British Standards and we are Sponsor Members of the Institute of Acoustics.
Gracey & Associates are an independent organization with over 35 years experience of sound and vibration solutions.
Hire is the cost effective solution with overnight access to the latest and best instrumentation.
- Gracey & Associates 01933 624212
- Noise and vibration instrumentation hire and calibration
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Over 500 pages of information on the hundreds of meters and systems we have available for hire.
GRAS Microphones, Preamplifiers etc.,.
Gunnar Rasmussen is a very famous name in the world of acoustics. For many years he worked at Bruel & Kjaer designing and developing their world famous range of microphones. In 1993 he set up his own company - GRAS - Gunnar Rasmussen Acoustic Systems to specialize in microphones and associated electronics. Click a link for more details
| GRAS Instruments | Daily Hire * | |
| GRAS 12AA | Power Supply Module - battery operated - 2 channel | £ 5 |
| GRAS 26AA | Preamplifier - 1/4" with 0.3 m of thin lead to 4-pin Lemo connector | £ 3 |
| GRAS 26AB | Preamplifier - 1/4" with 1/2" casing and integral 7-pin Lemo connector | £ 3 |
| GRAS 26AC | Preamplifier - 1/4" with 2m of thin cable to 7-pin Lemo connector | £ 3 |
| GRAS 26AF | Preamplifier - 1/2" with integral 7-pin Lemo connector | £ 3 |
| GRAS 26AG | Preamplifier - 1/2" with insert voltage and integral 7-pin Lemo connector | £ 3 |
| GRAS 26AK | Preamplifier - 1/2" with integral 7-pin Lemo connector - general purpose | £ 3 |
| GRAS 40AE | Microphone - 1/2", free-field, pre-polarized, general purpose | £ 4 |
| GRAS 40AF | Microphone - 1/2", free-field, 200 V polarization, general purpose | £ 4 |
| GRAS 40AK | Microphone - 1/2", sound intensity set, matched pair with spacers | £ 12 |
| GRAS 40AN | Microphone - 1/2", free-field, 200 V polarization, low frequency | £ 5 |
| GRAS 40AS | Microphone - 1/2", community noise - 90º incidence correction | £ 4 |
| GRAS 40BF | Microphone - 1/4", free-field, 200 V polarization, wide band | £ 6 |
| GRAS 41AL | Outdoor Microphone System - type 1 | £ 8 |
| GRAS 42AA | Pistonphone Calibrator - 114 dB @ 250 Hz | £ 6 |
| GRAS 50AI | Sound Intensity Probe | £ 20 |
| GRAS 51AB | Sound Intensity Calibration Unit | £ 8 |
| GRAS Accessories | Daily Hire * | |
| AA 0008 | Cable - Preamplifier extension, 7-pin Lemo, 3 m | £ 2 |
| AA 0010 | Cable - GRAS 50AI probe extension, 12-pin Lemo, 10 m | £ 4 |
| AA 0011 | Cable - GRAS 50AI probe adaptor to 2 x 7-pin Lemo, 1 m | £ 3 |
| AB 0002 | Power supply - see GA 40B1-00 | |
| AG 0001 | Adaptor - 7-pin Lemo 1B socket to 7-pin B&K plug | £ 1 |
| AL 0001 | Desiccator delivered with 41AL systems | £ 2 |
| AL 0002 | Tripod adaptor - 1/2" preamplifier 'tube' | £ 1 |
| AL 0003 | Tripod adaptor - 1/2" and 1/4" - swivel head | £ 2 |
| AM 0037 | Transport cap delivered with 41AL systems | |
| AM 0145 | Windshield, was AM 0052 - see GA 83G1-00 | |
| GR 0010 | Adaptor - converts 1/4" preamplifiers for 1/2" microphones | £ 1 |
| RA 0001 | Adaptor - 1/2" microphones with 1/4" preamplifiers - 90 degrees | £ 1 |
| RA 0003 | Adaptor - 1/2" microphones with 1/4" preamplifiers - straight | £ 1 |
| RA 0010 | Calibration coupler - 41AL systems | £ 1 |
| RA 0011 | Goose-neck with 7-pin Lemo connectors | £ 2 |
| RA 0020 | Nose cone for 1/2" microphones | £ 2 |
* Our standard hire charges are based on a 4-day minimum period. Click here for details and other options.
- Gracey & Associates 01933 624212
- BSI accreditation for sound and vibration instrument hire and calibration
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over 500 pages of information plus a glossary: see also our calibration service.