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Total Hardness & Iron Low‑Range Photometer – HI97741 Photometer Hanna Instruments
Total Hardness & Iron Low‑Range Photometer – HI97741 Photometer Hanna Instruments

Total Hardness & Iron Low‑Range Photometer – HI97741

$634.99

    Compact and durable, the HI97741 portable photometer measures calcium, magnesium, total hardness, and iron (0–1.60 mg/L). With CAL Check™, tutorial mode, and waterproof IP67 design, it’s built for accurate testing in any environment.

See All Specs

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

What's Included

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VR Headset

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2 Touch Controllers

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Charging Cable

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Power Adapter

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Glasses Spacer

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A hand holding a Hanna photometer

Simple Operation for Accurate Results

On-screen guidance and animated tutorials walk you through every step of setup, calibration, and testing, so you always know what to do next. You can easily access this Tutorial Mode at any time with a dedicated help key. The meter’s automatic shut-off feature helps preserve battery life. A warning symbol will flash when the battery level is below 10%, and the unit will shut down automatically to prevent any inaccurate readings from occurring due to low power.

Data Logging Capability

There's no need to worry about missing a measurement. Your photometer automatically saves the last 50 measurements in its internal memory. These results can be viewed instantly from the Log Recall Menu.

CAL Check™ for Meter Validation

Hanna’s unique CAL Check™ feature offers a simple, stress-free method to confirm your photometer is operating correctly. Simply insert the certified CAL Check™ standards, and the meter will guide you through the validation process. If your photometer is out of its specified range, you can quickly calibrate it to your standard.

Built-in Durability and Advanced Optics

An advanced optical system delivers precise and repeatable results. It features an efficient Light Emitting Diode (LED) that provides more light while consuming less power, along with a narrow band interference filter. The new IP67-rated body is built to withstand real-life knocks, drops, and spills, ensuring top performance in any environment. Its internal components are sealed against dust, dirt, and water. The meter is also designed to float, just in case you drop it. An exclusive positive-locking system ensures cuvettes are always placed in the same position for consistently accurate measurements.

Designed for Portability

This photometer is comfortable to hold for on-the-go testing or can be placed on a table for benchtop use. Its backlit LCD display provides clear, easy-to-read results from any angle, day or night. The included AA batteries provide a life of more than 800 measurements.

We believe that buying a meter should be a simple process. The HI97741 photometer is supplied with all the essential accessories needed for successful measurements.

Each HI97741 is supplied with:

  • Sample cuvettes (2 pcs.)
  • Sample caps (2 pcs.)
  • Plastic stoppers (2 pcs.)
  • 1.5V AA alkaline batteries (3 pcs.)
  • Instruction manual
  • Meter quality certificate

For the most cost-effective and comprehensive testing option, upgrade to the Photometer Kit which includes the necessary CAL Check™ Standards.

Each HI97741C kit is supplied with:

  • Sample cuvettes (2 pcs.)
  • Sample caps (2 pcs.)
  • Plastic stoppers (2 pcs.)
  • ZERO CAL Check™ Cuvette A
  • CAL Check™ Cuvette B standards for specific parameters
  • Cloth for wiping cuvettes
  • Scissors
  • 1.5V AA alkaline batteries (3 pcs.)
  • Instruction manual
  • Meter quality certificate
  • CAL Check™ standard certificate
    Specification Detail
    sku HI97741
    Hardness Calcium Range 0.00 to 2.70 mg/L (as CaCO3)
    Hardness Magnesium Range 0.00 to 2.00 mg/L (as CaCO3)
    Hardness Total Range 0.00 to 4.70 mg/L (as CaCO3)
    Hardness Total Resolution 0.01 mg/L
    Hardness Total Accuracy ±0.11 mg/L ±5% of reading at 25 °C
    Hardness Total Method Adaptation of the Standard Methods for the Examination of Water and Wastewater,
    18th Edition,
    Colorimetric Method
    Iron LR Range 0.00 to 1.60 mg/L (as Fe)
    Iron LR Resolution 0.01 mg/L
    Iron LR Accuracy ±0.01 mg/L ±8% of reading at 25 °C
    Iron LR Method Adaptation of the TPTZ Method

    Shipping, Return, and Warranty Policy

    At Blue Tiger Scientific, we are proud to distribute authentic Hanna Instruments products. The following policies apply to all purchases made through our store.

    Shipping Policy

    • All orders are shipped via FedEx from Hanna Instruments' fulfillment center in Smithfield, Rhode Island.
    • FedEx Ground is the standard method; expedited options (2-Day, Overnight) are available for an additional cost.
    • Hanna Instruments only ships to residential or business addresses within the United States (no PO Boxes).
    • Orders placed after business hours, weekends, or holidays will ship the next business day, pending product and carrier availability.
    • Shipping timelines may vary depending on product availability, order size, and carrier logistics.
    • Blue Tiger Scientific and Hanna Instruments are not responsible for carrier delays, weather-related disruptions, or other unforeseen delivery issues once the order has shipped.

    Return Policy

    • All return requests must be coordinated directly with Blue Tiger Scientific before a product is sent back.
    • Products must have a Return Merchandise Authorization (RMA) number issued by Blue Tiger Scientific before being returned.
    • Products must be returned in new or like-new condition, with the original packaging and proof of purchase (such as an invoice or packing slip).
      Customers are responsible for return shipping costs unless otherwise stated.
    • Unauthorized returns (without an RMA) will be refused and returned at the customer's expense.
      Returns are subject to inspection and approval. Products not in acceptable condition may be denied credit.
    • Some products, such as custom-built, special order, and hazardous materials, may not be eligible for return.

    Warranty Policy

    • Hanna Instruments' products are covered by their Limited Warranty against defects in materials and workmanship under normal use.
    • All warranty claims and services are handled directly by Hanna Instruments.
    • Warranty periods vary by product. If unspecified, the standard warranty term is 18 months from the Hanna Instruments factory ship date.
    • If you experience an issue believed to be covered under warranty, please contact Hanna Instruments for guidance on how to submit your warranty request to Hanna Instruments.
    • Customers must follow Hanna Instruments' warranty submission process, including providing a claim number, product model and serial number, and a detailed description of the issue.
    • Hanna Instruments will determine whether products are repaired, replaced, or otherwise serviced under warranty.
    • Note: Warranty coverage does not apply to damage caused by misuse, accidents, unauthorized repairs, or improper storage and handling.

    Important Notes

    • Some Hanna Instruments products are custom-made or built to order. Shipping will occur once the product is ready.
    • In the event of backorders, you may request partial shipments.
    • Delays beyond our control (e.g., material shortages, import delays, or carrier issues) may occasionally occur.

Product Resources:

Manual Manual
Brochure Brochure

Copy of Technical Specifications

FeatureDetails
Viewing Head Siedentopf type trinocular head, inclined at 30°, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30mm I.D. eyetubes)
Eyepieces SWH10X Widefield high eyepoint eyepiece, Field No. 22, tube O.D. 30.0 mm
Nosepiece Quintuple
Quintuple LWD Planachromat Phase 10x, 20x
Condenser TC Condenser N.A. 0.30, W.D. 73.0mm
Stage180mm(X) x 245mm(Y) plain stage with replaceable glass insert with 45mm opening, Glass Stage plate insert
IlluminationKoehler without iris, with phase slider, 3W LED
WarrantyLIMITED LIFETIME WARRANTY

Questions about a product? Ask us here.

email us here: info@bluetigerscientific.com or live chat

Total Hardness & Iron Low‑Range Photometer – HI97741 Photometer Hanna Instruments
by Hanna Instruments

Total Hardness & Iron Low‑Range Photometer – HI97741

Kit? (*Reagents sold separately): Kit
Authorized Dealer
A hand holding a Hanna photometer

Simple Operation for Accurate Results

On-screen guidance and animated tutorials walk you through every step of setup, calibration, and testing, so you always know what to do next. You can easily access this Tutorial Mode at any time with a dedicated help key. The meter’s automatic shut-off feature helps preserve battery life. A warning symbol will flash when the battery level is below 10%, and the unit will shut down automatically to prevent any inaccurate readings from occurring due to low power.

Data Logging Capability

There's no need to worry about missing a measurement. Your photometer automatically saves the last 50 measurements in its internal memory. These results can be viewed instantly from the Log Recall Menu.

CAL Check™ for Meter Validation

Hanna’s unique CAL Check™ feature offers a simple, stress-free method to confirm your photometer is operating correctly. Simply insert the certified CAL Check™ standards, and the meter will guide you through the validation process. If your photometer is out of its specified range, you can quickly calibrate it to your standard.

Built-in Durability and Advanced Optics

An advanced optical system delivers precise and repeatable results. It features an efficient Light Emitting Diode (LED) that provides more light while consuming less power, along with a narrow band interference filter. The new IP67-rated body is built to withstand real-life knocks, drops, and spills, ensuring top performance in any environment. Its internal components are sealed against dust, dirt, and water. The meter is also designed to float, just in case you drop it. An exclusive positive-locking system ensures cuvettes are always placed in the same position for consistently accurate measurements.

Designed for Portability

This photometer is comfortable to hold for on-the-go testing or can be placed on a table for benchtop use. Its backlit LCD display provides clear, easy-to-read results from any angle, day or night. The included AA batteries provide a life of more than 800 measurements.

We believe that buying a meter should be a simple process. The HI97741 photometer is supplied with all the essential accessories needed for successful measurements.

Each HI97741 is supplied with:

  • Sample cuvettes (2 pcs.)
  • Sample caps (2 pcs.)
  • Plastic stoppers (2 pcs.)
  • 1.5V AA alkaline batteries (3 pcs.)
  • Instruction manual
  • Meter quality certificate

For the most cost-effective and comprehensive testing option, upgrade to the Photometer Kit which includes the necessary CAL Check™ Standards.

Each HI97741C kit is supplied with:

  • Sample cuvettes (2 pcs.)
  • Sample caps (2 pcs.)
  • Plastic stoppers (2 pcs.)
  • ZERO CAL Check™ Cuvette A
  • CAL Check™ Cuvette B standards for specific parameters
  • Cloth for wiping cuvettes
  • Scissors
  • 1.5V AA alkaline batteries (3 pcs.)
  • Instruction manual
  • Meter quality certificate
  • CAL Check™ standard certificate

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