Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 Μs; 500 mL sold2026 A small relay(like HH54P) is

A small relay(like HH54P) is needed for transition

General Tools 8501 Glass Cutter

Both ends have seals

Echo / Shindaiwa V555000010 BEARING

Oakton AO-00653-18 Oakton Conductivity and TDS Standard, 1413 Μs; 500 mL sold2026 A small relay(like HH54P) isOakton AO 00653 18 Oakton Conductivity and TDS Standard, 1413 s; 500 mL Kcl, NaCl and 442 conversions printed on the bottle for ease of use (excluded on 60 ml bottle, but included in insert) temperature corrections are printed on the bottle, with certified values listed in tables and referenced to 25 degree C (excluded on 60 ml bottle, but included in insert) manufactured under ISO 9000 quality guidelines and traceable to NIST standards If unopened,