1413 µS/cm Conductivity Standard (500mL Bottle) Cloning & Seed Starting The Grow1 Digital Microscope uses

The Grow1 Digital Microscope uses 'Plug & Play' technology (included Mini CD ROM not required) and takes still photos

The 5769 Multi-Pleat 11 is produced with a highly specialized

PM Wash works well for cleaning plants that are subject to humid environments

Pyur Scientific Low Form Beakers with handle

Get creative: mount to walls

1413 µS/cm Conductivity Standard (500mL Bottle) Cloning & Seed Starting The Grow1 Digital Microscope usesHI7031L is a premium quality 1,413 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years from the date of manufacture for an