Accessories

GRAS Sound & Vibration offers a wide range of standard accessories in the form of cables, adapters, windscreens and tripods for use in measuring set-ups. These can be broadly split up under accessories for microphones, for preamplifiers, for outdoor microphones, for pistonphonespistonphones and pinna simulators and accessories for ear simulators. Some are included with certain products, some are available as extras. All can be ordered individually. The brief descriptions given here as well as those on downloadable accessories sheet will help you to select what you need for your particular set-up. At all events, feel free to contact your GRAS partner if you need advice or further information.

GRAS Sound & Vibration also offers a wide range of special products and customised solutions. Our experience within the field of acoustics and vibration, combined with our short development time, enable us to provide innovative solutions to complex measurement problems in close co-operation with the customer. For a technical discussion of your measurement requirements, please contact your local representative or contact GRAS Sound & Vibration directly in Denmark.

GRAS RA0122 Random-incidence corrector

GRAS RA0122 Random-incidence corrector

For use with 1/2” Free-field microphones when measuring noise according to ANSI requirements...

GRAS RA0125 Adapter for microdot input to a 1/2” preamplifier

GRAS RA0125 Adapter for microdot input to a 1/2” preamplifier

The RA0125 is to be mounted instead of a microphone on a standard 1/2" preamplifier such as the Type 26AK. Thereby you get a Microdot (UNF 10-32) input to the preamplifier. Useful when a high input impedance is required for transducers such as hydrophones and accelerometers...

GRAS RA0127 Rain-protection cap for 1/4” microphones

GRAS RA0127 Rain-protection cap for 1/4” microphones

The RA0127 is a rain protection cap for use with 1/4" microphones...

GRAS RA0131 Rain-protection cap for 1/2” microphones

GRAS RA0131 Rain-protection cap for 1/2” microphones

The GRAS RA0131 is a rain protection cap for use with 1/2" microphones...

GRAS RA0132 Dehumidifier for 1/2” microphones

Length: 48 mm
Inner threading for preamp.: 11.70-60 UNS-2
Outer threading for mic.: 11.70-60 UNS-2
Material: stainless steel

GRAS RA0132 Dehumidifier for 1/2” microphones

For use when humidity levels are high and only with a rear-vented 1/2” microphone. An indicator placed on the side of the dehumidifier shows when it needs to be dried out before further use...

GRAS RA0140 Dummy 1” microphone

GRAS RA0140 Dummy 1” microphone

For checking the inherent noise level of a preamplifier loaded purely by the capacitance of a 1" microphone...

GRAS RA0143 Ear Simulator Holder Kit for KEMAR

GRAS RA0143 Ear Simulator Holder Kit for KEMAR

This retro-fit kit enables mounting of the IEC 60318-4 (60711) Ear Simulator on KEMAR models earlier than 2005...

GRAS RA0157 1/2" Calibration Adapter for KEMAR Pinna

Material: Stainless steel

GRAS RA0157 1/2" Calibration Adapter for KEMAR Pinna

Adapter for Pistonphone calibrating a GRAS RA0045 Ear Simulator with a KEMAR Ear Canal extension...

GRAS RA0168 Digital Barometer

Precision barometer which displays (toggle switch):
static-pressure correction for a pistonphone
the ambient static pressure.

GRAS RA0168 Digital Barometer

This precision barometer has an LCD which can display (toggle button) either the static-pressure correction (e.g. -0.13 dB) for a pistonphone or the ambient static pressure (e.g. 997 hPa). This product is intended as optional accessory for pistonphones which as standard has an analogue barometer in..

GRAS RA0172 Pinna Holder Kit for GRAS 45CA

GRAS RA0172 Pinna Holder Kit for GRAS 45CA

Used for GRAS 45CA when configured with IEC 60318-4 Ear Simulator and KEMAR pinna...

GRAS RA0173 1/8” Nosecone

Length: 17.4 mm
Outer diameter: 3. 5mm
Threading (mic. protection grid threading): M3.175x0.2
Material: Stainless steel
Weight: tbd

GRAS RA0173 1/8” Nosecone

The RA0173 is specially designed and optimized for use with 1/8" microphones for sound pressure measurements, when high speed wind comes from one known direction e.g. in a wind tunnel...

GRAS RA0176 1/2" to 1" Adapter for RA0039

Length 12 mm
Diameter: 23.77 mm
Material: Stainless steel

GRAS RA0176 1/2" to 1" Adapter for RA0039

Adapts 1/2" preamplifier to the IEC 60318 Coupler. Designed for use with RA0039 and GRAS 45CA...