What's New
GRAS AL0030 Acoustic Test Box

- Mini Anechoic Chamber
- Blocks External Noise
- Convenient Drawer Access
- Well Suited for Handset, Tablets, and Small Devices
- Internal Fixtures for Speaker and Microphones
GRAS Microphone Demo Campaign
G.R.A.S. Sound and Vibration is pleased to announce a new demonstration campaign. Try out the world’s best measurement microphones and be in the running to win a Jabra Pulse Wireless Earphones.
Svantek SV 102A+ Dual Channel Dosemeter
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- Simultaneous Binaural Measurements
- Class 1 Sound Level Meter
- In-ear or External Measurements
- Optional 1/1 and 1/3 Octave Analysis
Add Vibration to HART Network

Use your existing HART automation network to monitor vibration. Connect multiple Wilcoxon PCH420 accelerometers to your network and select what parameters to watch.
See the system in action at the Reliability 2.0 Exhibition in Las Vegas April 11-15.
More Consistent and Realistic Measurements
The GRAS pinna has been improved to provide more realistic and consistent measurements of in-ear, supra-aural, and circumaural devices. They are compatible with KEMAR and 43AG Ear & Cheek Simulators.
Read a White Paper explaining the technology.
Come see the new pinna at the Audiology Now! Exhibition in Phoenix on April 13-15.
Environmental Test Chambers by Russells

- Reach-in Chambers
- Altitude, Humidity, Temperature
- Portable Conditioning Units
- Walk-in and Drive-in Sizes
- AGREE Chambers
- Industrial Freezers
- Thermal Shock
- Controllers
PCH420 HART Vibration Transmitter

- Standard 4-20 mA Output plus HART Signal
- 3 Adjustable Filter Bands
- RMS, Peak, True Peak Detection
- Field Programmable
ACAM 100 Beamforming System

- Beamforming for <$9K
- Low Cost Digital MEMS Mics Combined with Industry's Best Algorithm by Optinav
- Single Cable (USB) PC Connection
- Simple To Use
Olive Tree Lab - Terrain

- Outdoor Sound Propagation
- Most Modern Wave Based Algorithm for Higher Accuracy
- Also Supports Traditional ISO 9613-2 Processing
- Affordable Price
- Part of OTL Suite