{"product_id":"hanna-hi702-high-range-copper-checker","title":"Hanna HI702 High Range Copper Checker – Digital Copper Colorimeter","description":"\u003cp\u003eThe Hanna HI702 High Range Copper Checker provides fast, digital copper testing for freshwater and saltwater aquariums, fish quarantine systems, aquaculture facilities, water-treatment applications, and other situations where accurate copper measurement is important.\u003c\/p\u003e\n\u003cp\u003eUnlike traditional aquarium test kits that require the user to compare sample colors against a printed chart, the HI702 uses colorimeter technology to display the copper concentration directly on its LCD screen. This helps reduce uncertainty caused by lighting conditions, color perception, and differences between printed color blocks.\u003c\/p\u003e\n\u003cp\u003eThe HI702 measures copper from 0.00 to 5.00 ppm with a resolution of 0.01 ppm. Its high-range format makes it particularly useful for monitoring copper-based treatments in fish-only quarantine and hospital aquariums when the selected medication requires concentrations within the checker’s measurement range.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital Copper Results:\u003c\/strong\u003e Displays the copper concentration directly in ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Measurement Range:\u003c\/strong\u003e Measures from 0.00 to 5.00 ppm copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine Resolution:\u003c\/strong\u003e Displays results in 0.01 ppm increments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and Saltwater Compatible:\u003c\/strong\u003e Suitable for aquarium and aquaculture testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Button Operation:\u003c\/strong\u003e Simple handheld testing procedure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Reaction Timer:\u003c\/strong\u003e Helps maintain consistent test timing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePortable Design:\u003c\/strong\u003e Compact enough for fish rooms, stores, service kits, and quarantine areas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Shutoff:\u003c\/strong\u003e Turns off after ten minutes of inactivity to conserve battery power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable Reagents:\u003c\/strong\u003e Uses Hanna HI702-25 Copper High Range reagent packets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration Check Available:\u003c\/strong\u003e Compatible with the optional HI702-11 calibration-check set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hanna Instruments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e High Range Copper Checker HC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HI702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParameter:\u003c\/strong\u003e Copper as Cu²⁺\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Range:\u003c\/strong\u003e 0.00–5.00 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.01 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy at 77°F:\u003c\/strong\u003e ±0.05 ppm ±5% of the reading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Adaptation of an EPA-approved bicinchoninate method\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Source:\u003c\/strong\u003e LED at 575 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Detector:\u003c\/strong\u003e Silicon photocell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Digital LCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e One 1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Shutoff:\u003c\/strong\u003e After ten minutes of non-use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approximately 3.4 × 2.4 × 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 2.3 ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e One year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncluded with the HI702\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHanna HI702 Copper High Range Checker\u003c\/li\u003e\n\u003cli\u003eTwo sample cuvettes with caps\u003c\/li\u003e\n\u003cli\u003eSix Copper High Range reagent packets\u003c\/li\u003e\n\u003cli\u003eOne 1.5V AAA battery\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003cli\u003eQuick-start guide\u003c\/li\u003e\n\u003cli\u003eProtective carrying case with fitted insert\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBest Used For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMarine fish quarantine aquariums\u003c\/li\u003e\n\u003cli\u003eFreshwater fish treatment systems\u003c\/li\u003e\n\u003cli\u003eHospital and observation tanks\u003c\/li\u003e\n\u003cli\u003eAquarium stores and fish rooms\u003c\/li\u003e\n\u003cli\u003eAquaculture facilities\u003c\/li\u003e\n\u003cli\u003ePublic aquariums\u003c\/li\u003e\n\u003cli\u003ePond and water-quality applications\u003c\/li\u003e\n\u003cli\u003eEnvironmental and wastewater testing\u003c\/li\u003e\n\u003cli\u003eEducational laboratories\u003c\/li\u003e\n\u003cli\u003eWater-treatment applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Accurate Copper Testing Matters\u003c\/h3\u003e\n\u003cp\u003eCopper-based medications are commonly used in fish-only quarantine and treatment systems. Their effectiveness and safety depend on maintaining the concentration specified by the medication manufacturer.\u003c\/p\u003e\n\u003cp\u003eToo little copper may fail to maintain the intended treatment concentration. Too much copper may expose fish to unnecessary toxicity. The appropriate target depends on the exact copper medication, its formulation, the fish species, water chemistry, and the manufacturer’s treatment protocol.\u003c\/p\u003e\n\u003cp\u003eThe Hanna HI702 measures copper concentration but does not determine which copper medication should be used or what treatment level is appropriate. Always follow the directions supplied with the selected medication.\u003c\/p\u003e\n\u003ch3\u003eMeasurement Range\u003c\/h3\u003e\n\u003cp\u003eThe HI702 measures copper from 0.00 to 5.00 ppm.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Displayed Value:\u003c\/strong\u003e 0.00 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Measurement Range:\u003c\/strong\u003e 5.00 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e 0.01 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf the measured copper concentration exceeds the checker’s range, the maximum value will blink. Hanna instructs users to verify the sample is free from debris and dilute the sample when an appropriate laboratory dilution procedure is available.\u003c\/p\u003e\n\u003cp\u003eDiluting aquarium samples can introduce calculation and measurement errors. For treatment decisions, it is generally better to keep copper within the checker’s direct measurement range and follow the medication directions carefully.\u003c\/p\u003e\n\u003ch3\u003eAccuracy\u003c\/h3\u003e\n\u003cp\u003eHanna lists the HI702 accuracy as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e±0.05 ppm ±5% of the reading at 25°C, or 77°F.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis means the total possible measurement variation depends partly on the concentration being tested. Consistent sample preparation, clean cuvettes, correct timing, and fresh reagents are important for dependable results.\u003c\/p\u003e\n\u003ch3\u003eHow the HI702 Works\u003c\/h3\u003e\n\u003cp\u003eThe checker uses a bicinchoninate reagent method. When the reagent is added to a water sample containing copper, the reaction produces a purple color.\u003c\/p\u003e\n\u003cp\u003eThe HI702 shines light through the reacted sample and measures the amount absorbed. It then converts the result into a digital copper concentration displayed in parts per million.\u003c\/p\u003e\n\u003ch3\u003eBasic Testing Procedure\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003ePress the button to turn on the HI702.\u003c\/li\u003e\n\u003cli\u003eFill a clean cuvette with 10 mL of the untreated water sample.\u003c\/li\u003e\n\u003cli\u003eReplace the cap and wipe the outside of the cuvette completely clean and dry.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the lid.\u003c\/li\u003e\n\u003cli\u003ePress the button to zero the instrument.\u003c\/li\u003e\n\u003cli\u003eRemove the cuvette and add one full packet of HI702-0 Copper High Range reagent.\u003c\/li\u003e\n\u003cli\u003eReplace the cap and shake gently for approximately 15 seconds.\u003c\/li\u003e\n\u003cli\u003eRemove any visible bubbles by gently swirling or tapping the cuvette.\u003c\/li\u003e\n\u003cli\u003eWipe the cuvette again so it is dry and free from fingerprints.\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette into the checker and close the lid.\u003c\/li\u003e\n\u003cli\u003ePress and hold the button to begin the built-in countdown, or wait 45 seconds and press the button.\u003c\/li\u003e\n\u003cli\u003eRead the copper concentration displayed in ppm.\u003c\/li\u003e\n\u003cli\u003eDiscard the reacted sample immediately after testing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFollow the complete Hanna instruction manual included with the checker.\u003c\/p\u003e\n\u003ch3\u003eReagents Required\u003c\/h3\u003e\n\u003cp\u003eEach copper test requires one packet of Hanna Copper High Range reagent.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter Reagents:\u003c\/strong\u003e Six tests included with the checker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Reagents:\u003c\/strong\u003e HI702-25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement Package:\u003c\/strong\u003e 25 tests\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReagents are consumable and must be replaced as they are used. The checker cannot measure copper accurately without the correct Hanna HI702 reagent.\u003c\/p\u003e\n\u003ch3\u003eOptional Calibration Check Set\u003c\/h3\u003e\n\u003cp\u003eThe optional Hanna HI702-11 Copper High Range Calibration Check Set allows users to verify that the checker is reading within its expected performance range.\u003c\/p\u003e\n\u003cp\u003eThe calibration check is particularly useful for aquarium stores, aquaculture facilities, service technicians, laboratories, and customers who regularly make treatment decisions based on copper measurements.\u003c\/p\u003e\n\u003cp\u003eThe HI702-11 set validates checker performance but does not replace the reagent packets required for testing aquarium water.\u003c\/p\u003e\n\u003ch3\u003eTips for Accurate Results\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse exactly 10 mL of sample water\u003c\/li\u003e\n\u003cli\u003eUse one complete reagent packet per test\u003c\/li\u003e\n\u003cli\u003eKeep the sample free from suspended debris\u003c\/li\u003e\n\u003cli\u003eMake sure the cuvette exterior is completely dry\u003c\/li\u003e\n\u003cli\u003eRemove fingerprints, oil, salt, and dust from the glass\u003c\/li\u003e\n\u003cli\u003eUse a lint-free or microfiber cloth\u003c\/li\u003e\n\u003cli\u003eInsert the cuvette in the same orientation for zeroing and testing\u003c\/li\u003e\n\u003cli\u003eShake gently rather than aggressively\u003c\/li\u003e\n\u003cli\u003eRemove bubbles before placing the cuvette into the checker\u003c\/li\u003e\n\u003cli\u003eFollow the reaction timing precisely\u003c\/li\u003e\n\u003cli\u003eDo not allow the reacted sample to sit longer than instructed\u003c\/li\u003e\n\u003cli\u003eDiscard the sample immediately after the reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Cuvette Cleanliness Matters\u003c\/h3\u003e\n\u003cp\u003eThe HI702 measures light passing through the sample. Fingerprints, water droplets, salt deposits, scratches, residue, or dust on the outside of the cuvette may interfere with the optical reading.\u003c\/p\u003e\n\u003cp\u003eBefore every zero and final measurement, wipe the cuvette using a clean lint-free cloth. Avoid touching the clear sides of the cuvette after cleaning.\u003c\/p\u003e\n\u003cp\u003eUse the same cuvette and orientation for both the initial zero and reacted measurement whenever possible.\u003c\/p\u003e\n\u003ch3\u003eAvoiding Bubbles\u003c\/h3\u003e\n\u003cp\u003eAggressive shaking can create bubbles in the sample. Bubbles may interfere with the checker’s optical path and produce inaccurate or falsely elevated readings.\u003c\/p\u003e\n\u003cp\u003eAfter mixing the reagent, remove bubbles by gently swirling the cuvette or lightly tapping it. Do not open the cap or allow sample loss while removing bubbles.\u003c\/p\u003e\n\u003ch3\u003eSample Disposal\u003c\/h3\u003e\n\u003cp\u003eDiscard the reacted sample immediately after the measurement. Hanna warns that leaving the reacted sample inside the cuvette may permanently stain the glass.\u003c\/p\u003e\n\u003cp\u003eNever pour the reacted test sample back into the aquarium.\u003c\/p\u003e\n\u003cp\u003eFollow the reagent safety information and local disposal requirements. Wash hands after handling test reagents and keep them away from children and pets.\u003c\/p\u003e\n\u003ch3\u003eFreshwater Aquarium Use\u003c\/h3\u003e\n\u003cp\u003eHanna identifies the HI702 as suitable for freshwater aquarium testing. It may be used in freshwater quarantine, hospital, aquaculture, and water-treatment systems when copper is being monitored.\u003c\/p\u003e\n\u003cp\u003eCopper is highly toxic to many freshwater invertebrates and may affect certain fish species differently. Do not use copper medication in a display aquarium unless the medication manufacturer specifically approves the livestock, substrate, filtration, and aquarium setup.\u003c\/p\u003e\n\u003ch3\u003eSaltwater Aquarium Use\u003c\/h3\u003e\n\u003cp\u003eThe HI702 is officially compatible with saltwater samples and is commonly used by marine fish keepers to monitor copper in quarantine or treatment aquariums.\u003c\/p\u003e\n\u003cp\u003eCopper treatments are generally intended for fish-only quarantine systems rather than reef displays. Corals, shrimp, crabs, snails, echinoderms, and many other marine invertebrates can be extremely sensitive to copper.\u003c\/p\u003e\n\u003cp\u003eDo not treat a reef aquarium with copper unless a qualified treatment protocol and product labeling specifically support that use.\u003c\/p\u003e\n\u003ch3\u003eCopper and Aquarium Substrates\u003c\/h3\u003e\n\u003cp\u003eCalcium-based substrates, porous rock, decorations, filter media, and other surfaces may absorb or bind copper. This can cause copper concentrations to change after dosing and may make it difficult to maintain the intended level.\u003c\/p\u003e\n\u003cp\u003eFor that reason, copper treatment is commonly performed in a simple quarantine aquarium with limited décor and inert equipment.\u003c\/p\u003e\n\u003cp\u003eTest regularly during treatment instead of assuming that the concentration remains stable after one dose.\u003c\/p\u003e\n\u003ch3\u003eCopper and Water Conditioners\u003c\/h3\u003e\n\u003cp\u003eSome water conditioners, reducing agents, organic binders, medications, and filtration products may affect copper chemistry or test interpretation.\u003c\/p\u003e\n\u003cp\u003eFollow the copper medication manufacturer’s compatibility instructions. Do not combine products unless their directions clearly state they may be used together.\u003c\/p\u003e\n\u003cp\u003eThe HI702 reports the copper concentration produced by its test method, but it cannot determine whether another aquarium additive has changed the medication’s biological availability.\u003c\/p\u003e\n\u003ch3\u003eTesting Frequency During Copper Treatment\u003c\/h3\u003e\n\u003cp\u003eTesting frequency should follow the copper medication manufacturer’s instructions. In many treatment systems, copper should be checked:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuring the initial dosing period\u003c\/li\u003e\n\u003cli\u003eAfter adding each portion of medication\u003c\/li\u003e\n\u003cli\u003eAfter water changes\u003c\/li\u003e\n\u003cli\u003eAfter replacing filter media\u003c\/li\u003e\n\u003cli\u003eWhen adding new water or livestock\u003c\/li\u003e\n\u003cli\u003eIf fish show signs of stress\u003c\/li\u003e\n\u003cli\u003eAt regular intervals throughout treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not rely on the amount of medication added alone. Actual copper levels may change because of water volume, adsorption, water changes, décor, filtration, and measurement errors.\u003c\/p\u003e\n\u003ch3\u003eHigh Range vs. Low Range Copper Checkers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI702 High Range:\u003c\/strong\u003e Measures 0.00–5.00 ppm copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHI747 Low Range:\u003c\/strong\u003e Designed for lower copper concentrations and different applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HI702 is generally the more relevant checker when copper concentrations are expected to fall within aquarium medication or high-range water-testing levels.\u003c\/p\u003e\n\u003cp\u003eSelect the checker based on the expected concentration and required resolution rather than product name alone.\u003c\/p\u003e\n\u003ch3\u003eBattery and Automatic Shutoff\u003c\/h3\u003e\n\u003cp\u003eThe HI702 uses one 1.5V AAA battery. Hanna states that a fresh battery can provide a minimum of approximately 5,000 measurements under normal conditions.\u003c\/p\u003e\n\u003cp\u003eThe checker automatically turns off after ten minutes of inactivity to conserve battery life.\u003c\/p\u003e\n\u003cp\u003eWhen the battery is too low for dependable operation, the checker displays a battery warning and must be fitted with a new AAA battery.\u003c\/p\u003e\n\u003ch3\u003eCleaning and Storage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRinse cuvettes promptly after every test\u003c\/li\u003e\n\u003cli\u003eDo not allow reacted copper samples to dry inside the cuvette\u003c\/li\u003e\n\u003cli\u003eUse aquarium-test or laboratory-quality cuvette-cleaning solution when needed\u003c\/li\u003e\n\u003cli\u003eKeep the checker dry\u003c\/li\u003e\n\u003cli\u003eStore reagents tightly sealed and away from excessive heat or moisture\u003c\/li\u003e\n\u003cli\u003eKeep the checker and accessories in the supplied case\u003c\/li\u003e\n\u003cli\u003eProtect cuvettes from scratches\u003c\/li\u003e\n\u003cli\u003eRemove residue before storing the equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Copper-Treatment Note\u003c\/h3\u003e\n\u003cp\u003eThe Hanna HI702 is a measuring instrument, not a medication. It does not treat parasites, infections, or aquarium water by itself.\u003c\/p\u003e\n\u003cp\u003eDo not select a target copper concentration based only on general internet recommendations. Different products may contain ionic, chelated, or complexed copper and may specify different therapeutic ranges.\u003c\/p\u003e\n\u003cp\u003eAlways use the target range, dosing schedule, safety information, and treatment duration provided by the exact copper medication manufacturer.\u003c\/p\u003e\n\u003cp\u003eCopper can be dangerous to fish when overdosed and is highly toxic to many invertebrates. Test carefully and keep copper treatment separate from reef and invertebrate display aquariums unless expressly approved.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the Hanna HI702 measure?\u003c\/strong\u003e\u003cbr\u003eIt measures high-range copper concentrations in water and displays the result in ppm as Cu²⁺.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the measurement range?\u003c\/strong\u003e\u003cbr\u003eThe HI702 measures from 0.00 to 5.00 ppm copper.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the resolution?\u003c\/strong\u003e\u003cbr\u003eThe digital display reports copper in increments of 0.01 ppm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow accurate is the HI702?\u003c\/strong\u003e\u003cbr\u003eHanna lists accuracy as ±0.05 ppm ±5% of the reading at 77°F.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with freshwater?\u003c\/strong\u003e\u003cbr\u003eYes. Hanna officially identifies it as suitable for freshwater aquarium testing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with saltwater?\u003c\/strong\u003e\u003cbr\u003eYes. Hanna officially states that the HI702 is compatible with saltwater.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for marine quarantine tanks?\u003c\/strong\u003e\u003cbr\u003eYes. It is commonly used to monitor copper in fish-only marine quarantine and treatment systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used in reef aquariums?\u003c\/strong\u003e\u003cbr\u003eThe checker can test a saltwater sample, but copper medication is generally unsafe for corals and other invertebrates. Copper treatment is normally performed in a separate fish-only quarantine aquarium.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the checker include reagents?\u003c\/strong\u003e\u003cbr\u003eYes. The package includes reagent packets for six tests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat replacement reagent does it use?\u003c\/strong\u003e\u003cbr\u003eIt uses Hanna HI702-25 Copper High Range reagents, sold in packages of 25 tests.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much water is required for each test?\u003c\/strong\u003e\u003cbr\u003eEach test uses a 10 mL water sample.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long does the test take?\u003c\/strong\u003e\u003cbr\u003eAfter adding and mixing the reagent, the checker uses a 45-second reaction period before taking the final reading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it eliminate color matching?\u003c\/strong\u003e\u003cbr\u003eYes. The checker reads the reacted sample electronically and displays a digital result.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it tell me how much copper medication to add?\u003c\/strong\u003e\u003cbr\u003eNo. It measures copper concentration. Follow the dosing directions for the exact medication being used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it work with every type of copper medication?\u003c\/strong\u003e\u003cbr\u003eThe checker measures copper using its specified bicinchoninate method. Always confirm compatibility and interpretation with the medication manufacturer, particularly when using chelated or complexed copper formulations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy might the reading change after dosing?\u003c\/strong\u003e\u003cbr\u003eCopper may bind to substrate, rock, decorations, filter media, and organic material. Water changes and additives can also alter the concentration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy must the cuvette be clean?\u003c\/strong\u003e\u003cbr\u003eFingerprints, water droplets, salt, dirt, and scratches can interfere with light passing through the sample and affect the reading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy should bubbles be removed?\u003c\/strong\u003e\u003cbr\u003eBubbles may disrupt the optical measurement and produce inaccurate results.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the reacted sample be left in the cuvette?\u003c\/strong\u003e\u003cbr\u003eNo. Hanna recommends discarding it immediately because the glass may become permanently stained.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the checker need calibration?\u003c\/strong\u003e\u003cbr\u003eRoutine user calibration is not performed like a probe meter, but the optional HI702-11 standard set can verify checker performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat battery does it use?\u003c\/strong\u003e\u003cbr\u003eIt uses one 1.5V AAA battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it turn off automatically?\u003c\/strong\u003e\u003cbr\u003eYes. It shuts off after ten minutes of inactivity.\u003c\/p\u003e\n\u003ch3\u003eAvailable at Tropical Treasures Wyo\u003c\/h3\u003e\n\u003cp\u003eThe Hanna HI702 High Range Copper Checker provides accurate digital copper measurements from 0.00 to 5.00 ppm for freshwater and saltwater aquariums, fish quarantine systems, aquaculture applications, and professional water testing.\u003c\/p\u003e\n\u003cp\u003eVisit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Hanna Instruments Checkers, HI702 replacement reagents, aquarium medications, quarantine supplies, test kits, and water-quality equipment.\u003c\/p\u003e","brand":"Tropical Treasures Wyo LLC","offers":[{"title":"Default Title","offer_id":53876382433493,"sku":null,"price":74.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/4545\/8133\/files\/HA00702-2T_1.png?v=1779558997","url":"https:\/\/tropicaltreasureswyo.com\/products\/hanna-hi702-high-range-copper-checker","provider":"Tropical Treasures Wyo LLC","version":"1.0","type":"link"}