Authors: Nikolay Nikonov (UH Manoa), Veronica Bindi (UH Manoa), John Clem (University of Deleware), Cristina Consolandi (UH Manoa), Claudio Corti (UH Manoa), Abhinandan Dass (UH Manoa), Paul Evenson (University of Delaware), Waraporn Nuntiyakul (Chiang Mai University, Thailand), James Ryan (University of New Hampshire)

We report the successful deployment of two neutron monitors, HLEA and THIMON, at the summit of Haleakalā, Maui. Using refurbished BP-28 counters and polyethylene reflectors from the original 1991 Haleakalā station, both detectors were carefully qualified and calibrated to ensure high performance for long-term cosmic ray studies. Operational since January 2025 at an altitude of 3052 meters and a cutoff rigidity of 12.9 GV, HLEA and THIMON fill a critical observational gap between existing MXCO (Mexico) and PSNM (Thailand) stations. Their real-time data is now integrated into the Space Weather Control Center at the University of Hawaiʻi at Mānoa, enhancing the global neutron monitor network’s capability to study galactic cosmic rays, solar neutrons, and radiation environment variations.”