The Contracting Authority hereby invites market participants to take part in this market consultation regarding the potential procurement of and its associated maintenance services. The purpose of this consultation is to assess the availability, capabilities, and interest of suppliers in delivering the specified product and services. This is not a call for tender, and no rights or obligations will arise from participation. The consultation is conducted electronically via the online Tender Platform TenderNed, in accordance with the principles of the Dutch Public Procurement Act of 2012. The insights gathered will support the Contracting Authority in shaping a possible future procurement strategy and ensuring alignment with market possibilities. Following the award of the contract, the Caeli laser system, including its external cooling unit, will be successfully installed and fully operational at the Cabauw station. The laser will be integrated into the existing Lidar system to enable continuous and simultaneous measurement of water vapor, clouds, and aerosols and temperature. A qualified laser engineer will be available to provide regular on-site maintenance, ensuring optimal performance and longevity of the system throughout the 10-year contract period.