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Includes a black-and-white secchi disk that is 20 cm in diameter and a 20-m nylon line that is calibrated every 0.5 m. Meets The GLOBE Program® specifications.
/!\ WARNING: Lead
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.