https://www.humboldtmfg.com/upgrade-for-humboldt-hm-2325a3f-minilogger.html
Upgrade for Humboldt HM-2325A.3F MiniLogger
The Analog Data Logger from Humboldt allows full automation of test data collection by providing a simple-to-use, 4-channel, stand-alone data-logging system.
upgradehumboldthm
https://www.idex-hs.com/store/product-detail/fitc_2325a_000/s-446631?cat_id=semrock_optical_filters&node=optical_filter_sets
FITC-2325A-000
fitc