Expert
Grewus Acoustic Products
Submissions to WP.29 bodies: Six documents (latest document: 1 July 2020)

Grewus develops, designs and manufactures audio and visual signaling devices that warn, remind or alert for varied applications in many industries like automotive, commercial vehicles, white goods, medical products, telecom and EMS/ODM manufacturers.

You can find more information about Grewus at their website.

2020 August 7
Reversing Warning Systems: Measuring Report-GREWUS "PeTer" free-field tests | TFRWS-11-02/Rev.1
2020-08-07 2020-06-24 16:22:08 UTC
2019 October 23
Calculation of sound pressure levels at varying distances | TFRWS-09-05
2019-10-23 2019-10-23 18:01:36 UTC
2019 September 5
Measurement Method Proposal for self-adjusting reverse warning devices | TFRWS-08-03
2019-09-05 2019-09-05 14:25:36 UTC
2019 June 24
Measurement Report: Ambient Noises and Audible Reverse Warning Devices | TFRWS-06-06
2019-06-24 2019-06-24 09:51:10 UTC
2019 January 4
Grewus comments on draft reversing warning devices regulation | TFRA-04-06
2019-01-04 2019-01-18 01:52:20 UTC
2019 January 4
Explanations for Grewus proposals on reversing warning device requirements | TFRA-04-07
2019-01-04 2019-01-18 01:57:51 UTC