Schedule Your Annual Microtops® Calibration at Mauna Loa

Annual factory calibration is essential to ensure accurate ozone, aerosol optical thickness (AOT), water vapor, and solar radiation measurements. Take advantage of our annual calibration program at the Mauna Loa Observatory in Hawaii—a unique high-altitude location that provides ideal atmospheric conditions for precise instrument calibration. Submit your instrument(s) by June 26, 2026 to be included in this year’s calibration. Early submission is recommended, as all systems will need to be tested prior to shipping to Mauna Loa. If repairs are required, they will be quoted separately. Calibrated units are expected to return in early to mid-August. All Microtops® ozonometers and sunphotometers are eligible.
	What’s Included Complete Functional Testing Shipping and Insurance to/ from Mauna Loa On-site Data Collection and Analysis Final Analysis and Calibration at Solar Light Updated Calibration Values for Each Channel Final Performance Verification New Calibration Certificate
To reserve your calibration, please contact our team to request a quote and complete the service request form when sending in your equipment. Scheduling details will be confirmed upon receipt of your reservation.
Reserve Your Spot Today