Rite-in-the-Rain - #470F-LG Large Bound Book, Universal Pattern, Brown Plankton Net Basic accuracy: ±3% rdg +

Basic accuracy: ±3% rdg + 5 digits

one point — 1413 µS/cm or 1382 ppm TDS conversion factor Adjustable 0

Product Code: PH695R

EN ISO 374-1 Type C (JKL)

They have a rugged zipper closure and hold up to 4 writing utensils

Rite-in-the-Rain - #470F-LG Large Bound Book, Universal Pattern, Brown Plankton Net Basic accuracy: ±3% rdg +Product Code: 470F LG All weather paper. Yellow farbrikoid cover. 80 sheets (160) pages (perforated), 6 3 4" x 8 3 4". Universal Pattern. Brown cover with tan pages. The cover, the paper, the sewn in pages, even the glue is designed to survive the elements. This is a Hard Bound Field book with Fabrikoid cover material (waterproof fabric wrapped, rigid cover stock, that does not saturate when submerged).