Control and measurement of record flights are made with a serviceable GPS or flight recorder with minimum 2d capabilities used in conjunction with a barograph, or a 3d instrument without a barograph.
For more informations, check Section 7D (Hang gliders and paragliders – Records and badges), chapter 5.4.1.
CIVL no longer requires “approved equipment” as every month or so, a new instrument model comes out from manufacturers around the world, and CIVL wishes to remain unbiased as far as choice of manufacturer is concerned.