All-Weather Pen & Refills Options:All-Weather Pen Refill - Black Pressurized (37R) The Aqua TROLL 100 Data

The Aqua TROLL 100 Data Logger measures and records conductivity and temperature

FEC solution efficiently eliminates both organic and inorganic contaminates without compromising sample integrity

The desiccant cartridge should be replaced when it changes from blue to pink

Cable configurations:

All-Weather Pen & Refills Options:All-Weather Pen Refill - Black Pressurized (37R) The Aqua TROLL 100 DataEnsure your Rite in the Rain notebook stays ready for any adventure with these premium all weather pens and refills. Available in both black and blue ink, these options are designed to provide smooth, consistent writing, even in the harshest conditions. Key Features: All Weather Ink: Specially formulated ink that resists water, grease, and dirt. Smooth Writing: Delivers a consistent, fluid writing experience. Durable Tip: Built to last, ensuring long