Our service
1. Capability
GRGT is equipped with calibration system of anechoic chamber, full silence chamber, low frequency coupler, amplifier, acoustic calibrator, signal generator, low-noise high-sensitive microphone and other acoustic equipment. It is qualified in the calibration of anechoic chamber, sound level meter, sound calibrator, sonic belt tension meter, working standard microphone, noise level statistical analyzer, personal sound exposure meter, noise dosimeter, charge amplifier and other items.
2. Servcies available
| acoustic measurement | |||||
| Serial number | Name of measuring instrument | Serial number | Name of measuring instrument | Serial number | Name of measuring instrument |
| 1 | sound level meter | 8 | charge amplifier | 15 | pure-tone audiometers |
| 2 | sound calibrator | 9 | anechoic chamber | 16 | reflectoscope |
| 3 | sonic belt tension meter | 10 |
SINAD meter
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17 | instrument for the measurement of sound intensity |
| 4 | working standard microphone | 11 | electro-acoustical measurement instrument | 18 | multi-channels sound analyzer |
| 5 | noise level statistical analyzer | 12 | audio amplifier | 19 | vibration meter for measuring envrionmental pollution |
| 6 | personal sound exposure meter | 13 | artificial mouth | ¡¡
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| 7 | noise dosimeter | 14 | artificial ear | ¡¡
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Tel£º+86-20-38699960 38699961
Fax£º+86-20-38698685 38695185 
Address£ºGuangzhou City, Whampoa¡¡ Avenue Tianhe District Xiping Yun Road No. 163>