Product Price Test Parameters (count) Accuracy (ppm (parts per million)) Test Range (ppm) Response Time (minutes) Ease of Use (scale (1-5)) Included Tests (count)
Hanna Instruments Marine Master Bluetooth Multiparameter Photometer HI97115
US
£369.22 pH, alkalinity, ammonia, calcium, magnesium, nitrate low range, nitrate high range, nitrite ultra low range, phosphate ultra low range 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 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 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 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

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.

ATI ATI Lab Analysis Standard ICP-OES Test
US
£25.81 40 macro-elements, trace elements, nutrients, and contaminants Highly accurate ICP-OES laboratory analysis 5-10 days from mailing Collect sample, use prepaid return shipping, receive online results 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

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.