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Item #:
506397
Hanna Instruments HI758 Marine Calcium Checker Test Kit - Saltwater Aquariums
Item #:
506397
USD 127
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
Order now and get it around Tuesday, August 04
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The HI 758 Calcium Checker HC is extremely simple to use for quick and accurate on the spot analysis.
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What Stands Out
Accurate Measurement
Delivers precise calcium readings essential for maintaining optimal conditions in saltwater aquariums, ensuring the health of marine life.
Easy-to-Use Design
User-friendly interface with simple instructions allows hobbyists, regardless of experience level, to effectively test calcium levels without hassle.
Compact Portability
Lightweight and portable design enables aquarists to conduct tests anywhere, perfect for both home or travel, adding convenience to aquarium care.
Product Details
- Easier to use and more accurate than chemical test kits, less expensive than professional testing
- Accuracy +/-6 % of reading at 25 degree C / 77 degree F
- Large LCD screen for readability
- Auto shut-off to extend battery life
- Operated by a single AAA battery
| Brand | Hanna Instruments |
| Material | Dolomite |
| Item dimensions L x W x H | 3 x 4 x 2 inches (7.6 x 10.2 x 5.1 cm) |
| Item Weight | 1 Pounds (450 grams) |
| Number of Items | 1 |
Who Should Buy?
-
Marine Aquarium Hobbyists
Perfect for hobbyists wanting precise calcium levels for optimal coral health in their saltwater aquariums.
-
Professional Aquarists
Ideal for professionals needing accurate calcium measurements for effective tank management and species care.
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Easy Testing Seekers
Designed for users seeking a simple, user-friendly testing solution with quick results and clear readings.
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Freshwater Aquarists
Not suitable for freshwater setups, as it is specifically designed for saltwater calcium testing.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the range of calcium concentration the HI 758 can measure?
Answer: The HI 758 can measure calcium concentrations from 200 to 600 ppm. -
Question:
How does the HI 758 ensure simplicity in operation?
Answer: It features a single button operation for zeroing and measuring. -
Question:
What type of battery does the HI 758 use?
Answer: It operates on a single 1.5V AAA battery.
Hanna Instruments Aquarium Test Kits Editorial Review
The Hanna Instruments HI758 Marine Calcium Checker Test Kit for saltwater aquariums has received mixed reviews from customers. Some users have found it to be accurate and easy to use, while others have had difficulties with Consistency and accuracy. The test kit uses a 100:1 dilution ratio, which means that even small residues of calcium in the sample water or on the walls of the test vial can significantly affect the test results. This has led to inConsistencies for some users, with different results obtained each time the test is performed. There have been suggestions to use pharmaceutical grade distilled water and lab-grade cleaning solutions to improve accuracy. While some customers have found the kit to be accurate and reliable, others have been disappointed with the results. One user mentioned that their first three readings were significantly different from each other and from the readings obtained with another test kit. Another user mentioned that they received a used product with missing reagent packets. Despite the mixed reviews, some users have found the test kit to be easy to use and appreciated the convenience of not having to count drops. The kit also comes with a plastic case and all the necessary materials for the tests. Overall, the Hanna Instruments HI758 Marine Calcium Checker Test Kit has had a mixed reception. Some users have found it accurate and easy to use, while others have had difficulties with Consistency and accuracy.
Customer Reviews & Ratings
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Pros
- Easy to use
- Convenient, no need to count drops
- Comes with a plastic case and all necessary materials
Cons
- InConsistent and inaccurate results reported by some users
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
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USD 127
Order now and get it around Tuesday, August 04
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Fastest cross-border delivery
Features & Benefits
- Extremely simple to use with single button operation.
- Offers quick and accurate calcium concentration analysis.
- Reading range between 200 to 600 ppm with 1 ppm resolution.
- High accuracy of +/-6% at 25 degrees C.
- Large LCD screen for easy readability.
- Auto shut-off feature to conserve battery life.
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