Product Description HI782-25 (25 tests) The HI782-25 are the replacement reagents for the HI782 Nitrate High Range Checker.  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.The HI782-25 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrate High Range Checker HC.These reagents are designed to be used with samples that have an expected range of 0.00 to 75.00 ppm nitrate.Features 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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Product Description Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 25x tests. The HI758 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure calcium. Required for the development of calcium carbonate skeletons of coral reefs, calcium is a crucial component of marine waters. Designed as a more accurate alternative to chemical test kits, the HI758 provides quick, accurate results in four easy steps: Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results.  BOOM EASY. ZAIR.  Zero, Add, Insert, Read. *To zero 1 ml of reagent A is added to deionized/distilled water as a blank.

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Product Description The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors visually. • Measurements with a range up to 75.0ppm• Less complex laboratory grade accuracy - Requires only 1 reagent• Simple, intuitive digital operation• Compact and precise whether at home, at work, or on-the-go Nitrate is the final step in the Nitrogen cycle. Excessive amounts of nitrates in saltwater aquariums facilitate the growth of undesirable organisms such as algae and dinoflagellates. The HI782 is a simple, accurate, and cost-effective way to measure nitrate from 0.0 to 75.0 ppm (as NO3–) in your saltwater aquarium.The HI782 Nitrate Checker HC uses the Zinc Reduction method to measure the concentration of nitrate colorimetrically. The HI782 provides quick, accurate results in four easy steps. Features at-a-glance: For use with saltwater samples. More accurate than chemical test kits. Dedicated to a single parameter. Small size, big convenience. No errors with a digital readout. Ideal for aquariums and marine biology applications. HI782 High Range Nitrate Checker vs HI781 Low Range Nitrate Checker The HI782 was designed to quickly and easily measure nitrate levels for aquarists with higher-than-average nutrient levels. This includes saltwater aquariums that are fish-only or have corals that can tolerate elevated levels of nitrate at 30 ppm or more.Very low levels of nitrate are critical for many saltwater reef aquariums, as nitrate can cause damage and possible death to certain delicate corals and invertebrates. For this reason, the HI781 offers unmatched precision in the measurement of very low levels of nitrate (0.00 to 5.00 ppm).  Specification Name Detail SKU HI781 Range 0.00 to 5.00 ppm (as NO₃ – ) Resolution 0.01 ppm Accuracy @ 25°C/77°F ±0.25 ppm ±2% of reading @ 25 °C (77 °F) Light Source LED @ 525 nm Light Detector silicon photocell Method Colorimetric method. The reaction between nitrate and the reagent causes a pink/violet tint in the sample. This meter has been developed to work with seawater samples. Battery Type (1) 1.5V AAA Auto-off after ten minutes of non-use Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) Weight 64 g (2.3 oz) Ordering Information Each HI781 is delivered in a case with custom insert and is supplied with sample cuvette and cap (2 pcs.), marine Nitrate Low Range reagent starter kit (reagents for 25 tests), filter paper (25 pcs.), filter holder (1 pc.), mixing vial and cap (1 pc.), 5 mL syringe with tip (1 pc.), 10 mL syringe with tip (1 pc.), 1.5V AAA Alkaline battery (1 pc.), & instruction manual. Reagent Set HI781-25 (25 tests) Calibration Set HI781-11 Product ReviewsHide Reviews Product Reviews Submit Your Review 0 Reviews ★★★★★ No reviews for this product

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Product Description Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in parts per million phosphates compared to parts per billion phosphorus. The HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks. Phosphate is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI774 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: Aquariums, Environmental, Aquaculture, Water Quality SKU HI774 Range 0.00 to 0.90 ppm Resolution 0.01 ppm Accuracy @ 25°C/77°F ±0.02 ppm ±5% of reading Light Source LED @ 525 nm Light Detector silicon photocell Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method Battery Type (1) 1.5V AAA Auto-off after 7 minutes of non-use and 2 minutes after reading Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Dimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) Weight 64 g (2.3 oz) Ordering Information HI774 Checker®HC is supplied with (2) sample cuvettes with caps, phosphate ULR reagent starter kit for 10 tests, batteries, instructions, and quick start guide. Reagent Set HI774-25 Calibration Set HI774-11 Warranty 1 year

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Product Description Expired on May 2025 This reagent works with both the 755 & 772 Hanna checker.  It may come with the tag 755-26 or 772-26, both reagents work with both checkers. Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 25x tests. The Hanna Marine Alkalinity 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 Alkalinity 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. *To zero 1 ml of reagent A is added to deionized/distilled water as a blank.

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Product Description HI70024P is a premium quality 35.00 ppt marine salinity calibration standard that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of conductivity solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70024P is for 25 sachets containing 20 mL of solution. 35.00 ppt @ 25°C salinity value. Temperature chart of the actual ppt value at various temperatures printed on each sachet Convenient packaging for one time use HI70024P is a premium quality 35.00 ppt marine salinity solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionized water for analytical use in accordance with ISO 3696/BS3978. Additional equipment used in preparation of the solutions include certified weight-checked balances, Class A glassware and certified thermometers. Convenience of individual packaging Ideal for users that do not calibrate frequently Ideal for field use due to portability Every sachet is as fresh as the day it was packaged Light block packaging prevents oxidation from UV light that could alter the value Each sachet marked with lot number and expiration date Hanna solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened sachet.

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Product Description The HI764-25 are the replacement reagents for the HI764 Nitrite Ultra Low Range Checker® HC. 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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Product Description The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing, what's excessive, and what to do about it. The elements being tested for include Na, Ca, Mg, K, Sr, B, Br, S, Li, Be, Ba, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Si, As, Sb, Sn, Cd, Se, Mo, Hg, P (PO4), Pb, I. Triton Labs Reef Aquarium Water Test -  "Empowered Reefkeeping" is at the core of "The Triton Method" , and it all starts with information about your aquarium's water. For the time ever, reefkeepers have access to the most detailied analysis of aquarium water ever developed. Developed over several years at his facility in Dusseldorf, Germany, Triton Labs founder, Ehsan Dashti has developed customized protocols to utilize Inductively Coupled Plasma-Optical Emmission Spectrometry analysis (ICP-OES) to literally rip molecules apart with plasma that is heated to 10,000 degrees Kelvin for analysis. The ICP-OES machine has been adapted by Ehsan to test seawater for the ultimate in accuracy. Water is tested for precise concentrations of lesser known elements found in seawater that are either essential and missing, or detrimental and building up to high levels in the aquarium. The elements being tested for include Na, Ca, Mg, K, Sr, B, Br, S, Li, Be, Ba, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Al, Si, As, Sb, Sn, Cd, Se, Mo, Hg, P (PO4), Pb, I.  The results provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing, what's excessive, and what to do about it. The results of Triton Reef’s testing are reported back to you online in a simple, easy-to-understand format. If you need to add trace elements, Triton offers ultra-pure trace elements to adjust deficiencies in your aquarium. The benefit to you is being able, for the first time, to add exactly what your corals require for long-term health and growth, or knowing exactly what is building up to potentially detrimental levels. The possibilities with the "Triton Method" include being able to precisely replicate natural the water chemistry conditions from reefs around the world, as well as creating higher potential for success with the information provided by the ICP-OES analysis. We recommend purchasing a minimum of 3 tests, so that you can take a "baseline" reeding of your reef, with a second test to track any adjustments made after the initial test, and a third test to determine what trace elements are being utilized at a higehr rate than others after the initial adjustments. Simple instructions included in every ICP box.  

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Product Description Three Salifert Professional Test Kits Includes Calcium, Alkalinity & Magnesium Includes all the Core parameters of any Saltwater Aquarium/Marine Reef Tank Salifert Calcium Test Kit - 50-100 Tests, Salifert Magnesium Test Kit - 25-50 Tests, Salifert Kh/alk Test Kit 100-200 Tests

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Product Description We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and automatically recognized when in calibration mode. Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.) Salinity readings are performed by an amperometric graphite probe that resists oxidation, providing better repeatability in measurements. The use of graphite also reduces the polarization effect common with testers that use two stainless steel pins. Accuracy @ 25 C/77 F is ±0.001 S.G. Get Hanna and test with confidence! Designed to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester measures conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are digitally displayed on the LCD. Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.). Comes with all the necessary solutions and batteries- everything you need to get started measuring right away. Ideal for testing salinity in aquariums, field, and industrial settings. Better Features for Better Testing An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on. Pocket Sized The compact size makes the HI98319 Marine Salinity Tester ideal for on-the-go testing. The multilevel LCD display provides at-a-glance salinity and temperature readings from any angle while dual button operation streamlines the testing process for any user. Long Battery Life The included CR2032 Li-ion battery provides up to 100 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement. Graphite Sensors Unlike stainless steel sensors, graphite sensors reduces polarization effects and does not oxidize for more reliable and accurate readings. Durable Casing Designed to withstand the knocks, drops, and spills of real life, the waterproof body ensures top performance in any environment. These meters are totally protected against dust and water intrusion from any direction. Integrated Temperature Probe Conductivity measurements are very sensitive to temperature variations. HI98319 has an exposed temperature sensor to ensure fast, accurately compensated readings even during sudden temperature fluctuations.  We believe that buying a tester should be simple. Your HI98319 Marine Salinity Tester is equipped with everything you need for successful testing right out of the box. 35.00 ppt Calibration Standard Sachet Solution (4) When performing a calibration it is important that the correct buffers are used. We include some starter buffer to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.  Protective Case Your tester comes with a complimentary carrying case to keep your tester safe from potential drops or bumps when not in use.  Specifications Range 0.0 to 70.0 ppt (g/L) 0.0 to 70.0 PSU 1.000 to 1.041 S.G. Resolution 0.1 ppt (g/L) 0.1 PSU 0.001 Accuracy ±1 ppt for 0.0 to 40.0 ppt; ±2 ppt for readings over 40.0 ppt ±1 PSU for 0.0 to 40.0 PSU ; ±2 PSU for readings over 40.0 PSU ±0.001 S.G. Temperature Range 0.0 to 50.0°C; 32.0 to 122.0°F Temperature Resolution 0.1°C; 0.1°F Temperature Accuracy (@ 25°C/77°F) ±0.5°C; 1°F Calibration automatic, single point 35.00 ppt Method ppt - International Oceanographic Tables PSU - Standard Methods for the Examination of Water and Wastewater, 2510 B, Electrical Conductivity Method S.G.- Standard Methods for the Examination of Water and Wastewater, 2510 C, Density Method Weight 68 g (2.4 oz.) without battery Temperature Compensation automatic from 5 to 50.0 ºC Battery Type / Life CR2032 3V Li-Ion (1 pc.)/ approximately 100 hours of continuous use Environment 0 to 50 °C (32 to 122 °F); RH max 100% Ordering Information Each meter is supplied with: CR2032 battery (inside the meter), Storage / Protection sleeve, Instruction manual, Quality certificate, and 35.00 ppt calibration standard sachet (4 pcs.)

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