Description
xHI764 Ultra Low Range Nitrite Checker HC
The HI764 by WLR Industries is a compact, handheld nitrite colorimeter designed to detect ultra-low nitrite levels in water samples. Built for saltwater environments, it combines portability with precise measurements, helping hobbyists and professionals monitor water quality without sacrificing ease of use.
With ultraviolet-assisted detection, this unit delivers reliable readings across a wide ultra-low range, specifically 0 to 200.0 μg/L (ppm). The handheld form factor makes it a practical companion for reef tanks, marine systems, aquaculture facilities, and field testing where quick, on-site results matter. The user interface is straightforward, reducing the time you spend dialing in tests and maximizing the time you can devote to observing your aquatic life.
Precision in a portable package
Designed for on-the-go testing, the HI764 leverages ultraviolet radiation to provide actionable nitrite data when and where you need it. Its 0–200 μg/L range is tailored to capture ultra-low nitrite fluctuations that can impact sensitive organisms in saltwater setups, giving you a clearer view of water quality before issues arise.
Key capabilities
- Ultra-low nitrite range from 0 to 200.0 μg/L
- Ultraviolet-based colorimetric detection for dependable results
- Compact, portable handheld design for on-site testing
- Simple button operation for quick measurements
Real-world uses
In reef aquariums and marine systems, nitrite levels can directly affect fish, corals, and beneficial bacteria. For aquaculture and quarantine setups, fast checks at the point of care help you monitor transitions and respond promptly. The HI764 also supports environmental monitoring and water-treatment workflows where clear, ultra-low nitrite visibility is valuable.
How to test in minutes
- Step 1: Calibrate the device according to the user guide
- Step 2: Fill a clean cuvette with your water sample
- Step 3: Insert the cuvette and press the measurement button
- Step 4: Read and record the displayed nitrite value
Why choose the HI764 for your saltwater setup
The HI764 offers a portable, easy-to-use solution for precision nitrite monitoring in marine environments. It supports hobbyists and professionals alike by providing consistent readings in low-nitrite contexts and enabling rapid decision-making based on observed trends.
Care and maintenance
- Keep optical surfaces clean for consistent results
- Calibrate regularly to maintain accuracy
- Use clean cuvettes and store the device in a dry place
- Follow warm-up and storage guidelines to extend sensor life
Note: This device delivers data to inform water-management decisions in a practical, non-prescriptive way. It is a tool to aid monitoring and stewardship of aquatic systems, not a guarantee of outcomes.
FAQ
Q: What environments is the HI764 nitrite checker suited for?
A: Ideal for saltwater and freshwater aquariums, aquaculture facilities, labs, and field water testing.
Q: How do I use the HI764 for saltwater tanks?
A: Calibrate, place a cuvette in the unit, add sample, and read measurements on the display.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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