0.00 and 1.00 ppm standards (iron) for Hanna Checker HI721: Iron
Great for testing proper functionality of your Hanna Checker HI721 Checker.
Your Aquarium Butler!
Use the Flexi Plug app on your SmartPhone or Tablet as a remote to control the function of your aquarium equipment through this bluetooth powered smart plug. Can be used with lighting fixtures, powerhead...
Authorized bus cables from Digital Aquatics for your ReefKeeper Elite system
Digital Aquarium Thermometer is fully submersible. Digital readout faces forward in the tank. Suction cup secures the thermometer to the glass.
Replacement Battery Included.
Hanna Instruments Replacement Electrode for DiST 5 Waterproof Low Range EC/TDS/Temperature Tester