SD20/SD30 Secchi Disk
Price:Negotiable
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Description
Additional Information
Technical Specifications
Secchi Disk SD20: Acrylic plate, diameter 20cm, black and white alternating
Secchi Disk SD30: Acrylic plate, diameter 30cm, black and white alternating
Counterweight: 300g stainless steel weight, screw-thread type
Graduated Tape Measure: 20m, metal frame, with handle
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