Skip to content

Global shipping available. Please request a quote to receive customized pricing for your region.

Hanna Instruments HI9146 Portable Dissolved Oxygen Meter – Waterproof, Auto-Calibration, Salinity & Altitude Compensation Portable DO Meter Hanna Instruments
Hanna Instruments HI9146 Portable Dissolved Oxygen Meter – Waterproof, Auto-Calibration, Salinity & Altitude Compensation Portable DO Meter Hanna Instruments
Hanna Instruments HI9146 Portable Dissolved Oxygen Meter – Waterproof, Auto-Calibration, Salinity & Altitude Compensation Portable DO Meter Hanna Instruments
Hanna Instruments HI9146 Portable Dissolved Oxygen Meter – Waterproof, Auto-Calibration, Salinity & Altitude Compensation Portable DO Meter Hanna Instruments

Hanna Instruments HI9146 Portable Dissolved Oxygen Meter – Waterproof, Auto-Calibration, Salinity & Altitude Compensation

$959.99

    Designed for durability and precision, the HI9146 Portable Dissolved Oxygen Meter delivers lab-grade accuracy in demanding field conditions—making it ideal for water quality testing in wastewater, aquaculture, and environmental monitoring. With altitude and salinity compensation, waterproof housing, and fast one-point calibration, this rugged DO meter is engineered for reliability on the go.

    • Reliable dissolved oxygen measurements in water, wastewater, and aquaculture

    • Waterproof design built for harsh outdoor environments

    • Quick one-point calibration and altitude/salinity compensation for accurate results everywhere

See All Specs

aeroplane.png__PID:119d4b1a-2623-400c-8fa4-aec5b49a3bf0

Fast Delivery

Most items ship same day

protection.png__PID:4b1a2623-e00c-4fa4-aec5-b49a3bf05f92

Manufacturer Warranty

All products are covered by manufacturer warranty

technical-support.png__PID:e00c8fa4-aec5-449a-bbf0-5f923431936b

After-Sale Support

24/7 support

Preparing Quote Cart. Your shopping cart stays unchanged.

HI9146 Portable Dissolved Oxygen Meter

The HI9146 is a rugged, high-accuracy portable dissolved oxygen (DO) meter built for both lab precision and field durability. Ideal for use in aquaculture, wastewater monitoring, environmental testing, and winemaking, it features temperature, altitude, and salinity compensation for reliable readings across various conditions. Automatic calibration and stability detection simplify use, while advanced features like BEPS and GLP recall make it a professional's go-to DO solution.

Key Features

  • Polarographic Sensor System: Utilizes a platinum cathode and silver anode with applied voltage to generate a current directly proportional to dissolved oxygen concentration.
  • Replaceable PTFE Membranes: Screw-cap style membranes make maintenance easy with quick electrolyte filling and membrane replacement.
  • One or Two-Point Automatic Calibration: Perform fast, accurate calibration at 0% and 100% DO saturation using standard air and solution.
  • Good Laboratory Practice (GLP): Recalls calibration data including date, time, and reference points for audit-ready reliability.
  • Temperature, Altitude & Salinity Compensation: Automatically compensates for temperature; user-adjustable altitude up to 4000 m and salinity from 0–80 g/L for versatile environments.
  • Auto-End Point Detection: Locks in readings once stability is reached, reducing operator error during measurements.
  • Backlit LCD Display: Ensures clear visibility of DO readings even in low-light field conditions.
  • Battery Error Prevention System (BEPS): Alerts users when battery power is insufficient for reliable operation and disables the backlight to conserve power.
    Specification Detail
    SKU HI9146
    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 ±0.2°C
    DO Range 0.00 to 45.00 ppm (mg/L), 0.0 up to 300.0% saturation
    DO Resolution 0.01 ppm (mg/L)
    DO Accuracy (@25°C/77°F) ±1.5% F.S. or ±1 digit, whichever is greater
    Temperature Compensation automatic from 0 to 50°C (32 to 122°F)
    Power Supply 1.5V (3) AAA batteries
    Power Consumption approximately 200 hours of continuous use without backlight (50 hours with backlight)
    Environment 0 to 50°C (32 to 122°F)
    Dimensions 185 x 72 x 36 mm (7.3 x 2.8 x 1.4″)
    Weight 300 g (10.6 oz.)
    Ordering Information HI9146 is supplied complete with HI76407 DO probe, HI76407A pre-formed PTFE DO membranes (2), HI7041S electrolyte solution (30 mL), batteries, instructions and rugged carrying case.
    Warranty 2 years
    Recommended Probe HI76407 polarographic DO probe, internal temperature sensor, DIN connector

    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.
    HI9146 Portable Dissolved Oxygen Meter Instruction Manual
    Download
    Manual

Questions about a product? Ask us here.

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

Customers are saying

5.00 ★ (3)
Verified