

🌊 Dive into precision—never miss a ppm with Hanna Marine Ammonia Checker!
The Hanna Marine Ammonia Checker HI784 delivers fast, accurate digital readings of ammonia levels in saltwater environments, ranging from 0.00 to 2.50 ppm. Designed for ease of use with a single button and large LCD display, it outperforms chemical test kits while being cost-effective. Its built-in timer and auto shut-off feature ensure reliable, efficient testing ideal for marine aquariums and aquaculture.
| ASIN | B0B4463YTX |
| ASIN | B0B4463YTX |
| Batteries | 1 AAA batteries required. (included) |
| Batteries | 1 AAA batteries required. (included) |
| Best Sellers Rank | #37,396 in Pet Supplies ( See Top 100 in Pet Supplies ) #58 in Aquarium Test Kits |
| Brand Name | Hanna Instruments |
| Color | Yellow |
| Customer Reviews | 4.2 4.2 out of 5 stars (130) |
| Date First Available | June 14, 2022 |
| Date First Available | June 14, 2022 |
| Directions | 1. Ensure the sample does not contain any debris. 2. Hold dropper bottles completely vertically and squeeze slowly to ensure correct drop size. 3. Whenever the cuvette is placed into the checker, it must be dry outside and free of fingerprints, oil and dirt. 4. Wipe the cuvette thoroughly with a microfiber cleaning cloth prior to insertion. 5. Shaking the cuvette can generate bubbles, causing high… |
| Item Package Dimensions L x W x H | 9.25 x 6.5 x 2.68 inches |
| Item Weight | 1.08 Pounds |
| Item model number | HI784 |
| Item model number | HI784 |
| Manufacturer | Hanna Instruments |
| Manufacturer | Hanna Instruments |
| Package Dimensions | 9.25 x 6.5 x 2.68 inches; 1.08 Pounds |
| Size | 86.0 x 61.0 x 37.5 mm |
K**R
Great product and easy to use
Very easy to use and clear instructions. So much easier to use than the drops Good quality
A**R
Works great
Works great. A little hard to do at first but it gets easier.
C**.
Hanna Marine Ammonia Checker HI784: Accurate and Easy Ammonia Monitoring
This Hanna Marine Ammonia Checker HI784 is a fantastic tool for maintaining a healthy marine aquarium. It's incredibly easy to use, providing accurate and reliable ammonia readings in seconds. Monitoring ammonia levels is crucial for fish health, and this checker makes it simple to keep a close eye on water quality. Highly recommended for any serious saltwater aquarist!
D**.
Good checker
Great checker. Just wish the packets were easier to pour.
Y**M
Nope. Doesn't work as described.
I wouldn't buy this again. I use a couple of other Hanna readers. They are quirky, but I can get them to work. The ammonia checker has never worked for me. It has several steps involving drops & two different reagents. And, if something goes wrong, you have to use more drops/reagents, etc. They aren't cheap when you run out. Another problem is that the reader itself does not function as described. HANNA provides a work around but it would be better if they fixed their product. Stick with the API test tubes & color charts.
M**K
Be Percise!
love this product!!! all i can say is read the instructions and follow them exactly to the second! the tests will fail without percision. Trust me, after the 15 minute result wait time, along with the pricy reagent packs, you want exactness.
H**N
Lo mejor
T**K
The reagent droppers are terrible.
I probably waste 25% of all tests due to the inaccurate drop sizes.
G**Y
Really appreciate getting digital readings when trying to cycle an aquarium. Only part I don't like is that it only goes to 2.5 ppm, but this is still very useful used in conjunction with another cheaper and less accurate tester that goes beyond 2.5 ppm. I'd buy it again. I can't find anything better.
Trustpilot
2 weeks ago
2 weeks ago