# Which brands are known for producing reliable aquarium water test kits? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which brands are known for producing reliable aquarium water test kits?

## Products

### Hanna Instruments Marine Master Bluetooth Multiparameter Photometer HI97115
```yaml
product: hanna-instruments-marine-master-bluetooth-multiparameter-photometer-hi97115
brand: Hanna Instruments
price_gbp: 369.22
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
accuracy: pH ±0.2 pH; alkalinity ±0.3 dKH ±5% of reading; ammonia ±0.05 ppm ±5% of reading; calcium ±6% of reading; magnesium ±5% of reading; nitrate low range ±0.25 ppm ±2% of reading; nitrate high range ±2.0 ppm ±5% of reading; nitrite ultra low range ±10 ppb ±4% of reading; phosphate ultra low range ±0.02 ppm ±5% of reading at 25 °C
test_range: pH 6.3 to 8.6 pH; alkalinity 0.0 to 20.0 dKH; ammonia 0.00 to 2.50 ppm; calcium 200 to 600 ppm; magnesium 1000 to 1800 ppm; nitrate low range 0.00 to 5.00 ppm; nitrate high range 0.0 to 75.0 ppm; nitrite ultra low range 0 to 200 ppb; phosphate ultra low range 0.00 to 0.90 ppm
ease_of_use: On-screen tutorial mode, built-in reaction timer, backlit LCD, Bluetooth Hanna Lab App connectivity, auto data logging, CAL Check validation, positive-locking cuvette system
included_tests: Marine pH, marine alkalinity, marine ammonia, marine calcium, marine magnesium, marine nitrate high range, marine nitrite ultra low range, marine phosphate ultra low range; marine nitrate low range reagent not included
test_parameters: pH, alkalinity, ammonia, calcium, magnesium, nitrate low range, nitrate high range, nitrite ultra low range, phosphate ultra low range
```

- **Price:** £369.22 [^1]
- **Summary:** The HI97115 is a waterproof, floating Bluetooth photometer for measuring nine important marine aquarium parameters with lab-quality optical performance. Its guided tutorials, reaction timer, CAL Check validation, auto logging, and included reagents make it well suited to reef aquarists, marine researchers, and aquaculture users.
- **Ideal For:** Hanna Instruments is known for reliable aquarium water testing, and this model specifically supports nine marine parameters with stated accuracy ranges, CAL Check validation, a sealed IP67 design, and repeatable LED optical measurements.
- **Additional Sources:** [^2], [^3]

### ATI ATI Lab Analysis Standard ICP-OES Test
```yaml
product: ati-ati-lab-analysis-standard-icp-oes-test
brand: ATI
price_gbp: 25.81
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
accuracy: Highly accurate ICP-OES laboratory analysis
ease_of_use: Collect sample, use prepaid return shipping, receive online results
response_time: 5-10 days from mailing
included_tests: Calcium, magnesium, potassium, iron, strontium, iodine, copper, lead, and other major elements, trace elements, nutrients, and contaminants; KH, nitrate, fluorine, and RO water analysis not included
test_parameters: 40 macro-elements, trace elements, nutrients, and contaminants
```

- **Price:** £25.81 [^4]
- **Summary:** This mail-in ICP-OES test analyzes 40 reef aquarium water parameters, including major elements, trace elements, nutrients, and heavy-metal contaminants. It includes prepaid return shipping, instructions, online results, and personalized recommendations, making it suitable for beginner and intermediate reef keepers seeking laboratory-level analysis.
- **Ideal For:** ATI is a reliable aquarium water-testing brand for reef keepers because this test uses ICP-OES laboratory analysis to measure 40 parameters and provides personalized dosing recommendations.
- **Additional Sources:** [^5], [^6]

---
## References & Sources
[^1]: Hanna Instruments, accessed 2026-09-13. https://hannainst.com/marine-master-waterproof-wireless-multiparameter-photometer-HI97115.html
[^2]: Bulk Reef Supply, accessed 2026-09-13. https://www.bulkreefsupply.com/marine-master-bluetooth-multiparameter-checker-hanna-instruments.html
[^3]: Reef Goods, accessed 2026-09-13. https://reefgoods.com/products/marine-master-bluetooth-multiparameter-photometer-hi97115
[^4]: Top Shelf Aquatics, accessed 2026-09-13. https://topshelfaquatics.com/products/lab-analysis-standard-icp-oes-test-ati
[^5]: Bulk Reef Supply, accessed 2026-09-13. https://www.bulkreefsupply.com/ati-lab-analysis-standard-icp-oes-test-ati.html
[^6]: ATI North America, accessed 2026-09-13. https://store.atinorthamerica.com/collections/water-care