Hanna Instruments - Checker Handheld Colorimeter Copper skimmer fire worms

fire worms

Hobbyist love the compact form and substantial output that creates an impressive shimmer inside of the aquarium

A360X has more color control

The extra strong aluminum frame and purpose designed components allow the extra thin transparent net cover to be customized to accommodate rim-mounted equipment such as lighting arms

and then covers this one

Hanna Instruments - Checker Handheld Colorimeter Copper skimmer fire wormsThe Hanna Instruments Copper High Range Checker (HI702) is a simple, accurate, and cost effective way to measure high ranges of copper. Designed as a more accurate alternative to chemical test kits, the Hanna Instruments Copper High Range Checker provides quick, accurate results in a few easy steps. Features at a glance: Easier to use and more accurate than chemical test kits Dedicated to a single parameter Small size, big convenience Ideal for: Water