• Picture of a small 30ml bottle of alkalinity reagents
    Add to cart / Details
    The HI775-26 are the replacement reagents for the HI775 Freshwater Alkalinity Checker® HC. Alkalinity Reagents for fresh water are to be used with the Alkalinity Checker HC.  
  • Photo of Hanna free chlorine test kit contents: blue probe with digital display, manual tests, two test tubes, and carrying case
    Add to cart / Details
    Simple, accurate, and cost effective way to measure free chlorine
  • photo of two low range ammonia checker reagent bottles
    Add to cart / Details
    The HI700-25 Ammonia LR Checker® Reagents are the replacement reagents for the HI700 Ammonia Low Range Checker® HC.
  • Picture of packets of Free Chlorine Reagent packets in small self contained packs.
    Add to cart / Details
    These are reagents for the colorimetric determination of free chlorine. There are enough reagents for 25 tests and are for use with Hanna’s compatible benchtop and portable photometers. These high-quality reagents are manufactured in a state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.  
  • Photo of blue Hanna Chlorine Checker, and kit with capped test tubes, manual tests, and carrying case
    Add to cart / Details
    Simple, accurate, and cost effective way to measure total chlorine
  • photo of nitrite Low Range Checker Reagent packet
    Add to cart / Details
    Nitrite Low Range Checker - Reagents for 25 Tests
  • Picture of small packets containing powder for chlorine test kits.
    Add to cart / Details
    The 25 test set is the HI711-25 that are the replacement reagents for the HI711 Total Chlorine Checker®HC.  Chlorine is a common disinfectant for water, and ensuring proper levels is important in many situations. Monitoring chlorine in your aquarium is really important for the life of your fish. This provides 25 tests.  
     
       
  • Photo of yellow probe with flip top cover, button, and digital display
    Add to cart / Details
    Simple, accurate, and cost effective way to measure low ranges of ammonia in fresh water!  The Checker HC uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample.  
  • Photo of yellow probe with flip top cover, button, and digital display
    Add to cart / Details
    Simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water!
  • Photo of red Hanna nitrite checker probe with digital display and power button
    Add to cart / Details
    Simple, accurate, and cost effective way to measure low ranges of nitrites
  • Photo of blue probe with flip top cover, button, and digital display
    Add to cart / Details
    Simple, accurate, and cost effective way to measure alkalinity in fresh water!
  • picture of a Dissolved Oxygen Meter for Aquaculture with 7 buttons, a test wand and LCD display
    Select options / Details
    A must have for DO sensitive organisms or high bio-load environments. The HI 9147 Dissolved Oxygen Meter is designed for aquaculture applications. This unit is unique among DO meters as it is supplied with a galvanic probe.