Bestsellers in Marine Line
Marine Alkalinity Checker® HC Reagents (25 Tests) - HI755-26
The HI755-26 are the replacement reagents for the Marine Alkalinity Checker® HC - HI755 and Marine Alkalinity (dKH) Checker® HC - HI772. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability
Marine Nitrate Low Range Checker Reagents (25 tests) - HI781-25
HI781-25 Marine Nitrate Low Range Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI781 Marine Nitrate Low Range Checker HC. They are manufactured in our state-of-the-art facility and clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high-purity chemicals
- Marked with expiration date and lot number for traceability
Spare Dissolved Oxygen Screw Cap Membranes For Galvanic Sensors - HI76409A/P
275.00 AED
The HI76409A/P are spare dissolved oxygen screwcap membranes designed especially for Hanna’s portable galvanic dissolved oxygen probes and sensors. The caps are constructed of durable ABS plastic with high density polyethylene (HDPE) oxygen permeable membranes. Each cap is easily filled with electrolyte and installed on the probe.
- Screw Cap Design
- Pre-tensioned Membranes
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Calibration Check Key at 32°F (HI762 Probes) - HI762032F
105.00 AED
The HI762032F is a calibration check key for thermistor thermometers that use the HI762 series of probes. Designed to simulate 32℉ (±0.8℉), this key offers a fast and simple way of checking the accuracy of your instrument.
- 32℉ Key Rated Value
- Simple, Quick Verification
- For Thermistors with HI762 Probes
Marine Magnesium Checker HC Handheld Colorimeter - HI783
251.00 AED
The HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer- Lambert principle to determine the concentration of magnesium colorimetrically. The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications. The 1000 to 1800 ppm range is ideal for coral/fish or fish-only aquarium maintenance.
- Ideal for aquariums and marine biology
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
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HI38023-100 Total Chlorine Extended Range Test Kit Replacement Reagents (100 tests)
215.00 AED
The HI38023-100 are replacement reagents for the determination of total chlorine by titration with the HI38023 Total Chlorine Extended Range Test Kit. There are enough reagents for approximately 100 tests to be used with Hanna’s test kit. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high-purity chemicals
- Marked with expiration date and lot number for traceability
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Marine Monitor pH, Marine Salinity, and Temperature - HI981520
The system can be calibrated at one or two points for pH and at one point for conductivity. Seawater salinity is expressed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (S.G.).Testing and monitoring salinity in saltwater aquariums is an ongoing task. The HI981520 is an easy to use vertical mount unit that continuously monitors and displays conductivity and pH.
“HI7031L 1413 µS/cm Conductivity Standard (500mL Bottle)” has been added to your cart. Continue shopping
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Marine Alkalinity Checker® HC Reagents (25 Tests) - HI755-26
The HI755-26 are the replacement reagents for the Marine Alkalinity Checker® HC - HI755 and Marine Alkalinity (dKH) Checker® HC - HI772. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability
Marine Nitrate Low Range Checker Reagents (25 tests) - HI781-25
HI781-25 Marine Nitrate Low Range Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI781 Marine Nitrate Low Range Checker HC. They are manufactured in our state-of-the-art facility and clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high-purity chemicals
- Marked with expiration date and lot number for traceability
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Marine Calcium Checker® HC - HI758
The Hanna Marine Calcium Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Calcium Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
- Compact, Portable Design
- Built-in Timer
- One-Button Operation
Advanced Dissolved Oxygen Benchtop Meter with Optical DO Probe (opdo®) - HI6421-02 (230V)
5,595.00 AED
HI6421 is a streamlined dissolved oxygen benchtop meter supplied with Hanna’s optical dissolved oxygen probe (opdo®) and features a large touch screen display for fresh and saltwater measurements.
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Marine Alkalinity Checker® HC Reagents (25 Tests) - HI772-26
The HI772-26 are the replacement reagents for the Marine Alkalinity (dKH) Checker® HC - HI772 and can be used with the Marine Alkalinity Checker® HC - HI755 . These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
- Marked with expiration date and lot number for traceability
Marine Low Range Nitrate Checker HC - HI781
The Hanna Marine Low Range Nitrate Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Nitrate Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
- Compact, Portable Design
- Built-in Timer
- Saltwater Compatible
Marine Nitrate High Range Checker HC Calibration Check Set - HI782-11
The Marine Nitrate High Range Checker HC Calibration Check Set provides a simple solution to validating the performance of the HI782 Marine Nitrate High Range Checker HC.
- Pre-tinted standard values
- Supplied with Certificate of Analysis
- Reusable with a long shelf-life
Marine Magnesium Checker HC Handheld Colorimeter - HI783
251.00 AED
The HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer- Lambert principle to determine the concentration of magnesium colorimetrically. The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications. The 1000 to 1800 ppm range is ideal for coral/fish or fish-only aquarium maintenance.
- Ideal for aquariums and marine biology
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
Inquire Now
Marine Line Ammonia Checker HC - HI784
The HI784 Marine Ammonia Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of ammonia colorimetrically. The HI784 is designed specifically to measure ammonia levels in a saltwater aquarium. The 0.00 to 2.50 ppm range is ideal for coral/fish or fish-only aquarium maintenance.
- Ideal for aquariums and marine biology
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
Glass Dispensing Tip for HI903 (2 pcs) - HI900523
375.00 AED
The HI900523 is a set of 2 glass titrant dispensing tips for the HI903 Karl Fischer Titration System. The specially designed tips deliver titrant precisely into high turbulence mixing zones, ensuring a rapid reaction. Its angular construction helps prevent titrant from diffusing into the sample solvent.Anti-diffusion tipPrecise designChemically resistant
Titrant Bottle Top Assembly for HI903 - HI900530
1,721.00 AED
The HI900530 is a titrant bottle top and fitting assembly for the HI903 Karl Fischer Titration System. The assembly is specially designed to keep titrant dry from ambient moisture. It is supplied with a desiccant cartridge, cartridge fitting, titrant hose fitting, O-rings, cap, and cover.
- Chemically resistant
- Quick replacement
- Easy to assemble
Solvent or Waste Bottle Top Assembly for HI903 - HI900531
1,721.00 AED
The HI900531 is a solvent or waste bottle top and fitting assembly for the HI903 Karl Fischer Titration System. The assembly is specially designed to keep solvent dry from ambient moisture. It is supplied with a desiccant cartridge, cartridge fitting, hose fitting, O-rings, cap, and cover.
- Chemically resistant
- Quick replacement
- Easy to assemble


















