Description
One meter for the tests that matter on a reef tank
The HI97115C replaces a shelf of separate test kits. It reads each result with an LED optical system, so you aren’t comparing colors by eye. You get a number on the screen, which makes it easier to spot small changes and fix them early.
Bluetooth and the Hanna Lab App
Pair the meter with a compatible phone or tablet to name samples, add notes, review your log, save method groups and share your data. The meter also stores readings on its own, so you can test without your phone.
Built for the fish room
The meter is waterproof and floats, with an IP67 rating, so a splash or a drop in the sump won’t ruin it. It’s small enough to use at the tank and sturdy enough to carry to frag swaps or farm work.
CAL Check
Hanna’s CAL Check feature lets you confirm the meter is reading correctly using CAL Check cuvettes (sold separately).
Key features
- 8 marine parameters in one meter
- Bluetooth connection to the Hanna Lab App
- Waterproof, floating IP67 design
- Advanced LED optical system
- Stores your recent readings (200 measurements)
- CAL Check feature to verify the meter
- Comes with a rugged carrying case and starter reagents
What it tests
| Parameter | Range |
|---|---|
| Marine pH | 6.3 to 8.6 pH |
| Marine Alkalinity | 0.0 to 20.0 dKH |
| Ammonia | 0.00 to 2.50 ppm (as NH₃) |
| Calcium | 200 to 600 ppm |
| Magnesium | 1000 to 1800 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 |
What’s in the box
- HI97115C photometer
- Starter reagents for pH, alkalinity, ammonia, calcium, magnesium, nitrate (high range), nitrite and phosphate (most are enough for about 25 tests each)
- 2 sample cuvettes with caps
- Syringes, pipettes and a cuvette cloth
- 3 AA batteries
- Rugged carrying case
Replacement reagents are sold separately. Once the starter reagents run out, you’ll need to reorder them.
Questions we get
Do I need a phone to use it? No. The meter works on its own. The app is optional and adds logging, notes and sharing.
Is it for saltwater only? Yes. The reagents and ranges are made for marine aquariums.
How many tests do I get? Most starter reagents cover about 25 tests per parameter.
Can I get more reagents later? Yes, Hanna sells replacement reagents for each parameter.
Is it waterproof? The meter has an IP67 rating and floats, but it’s still a precision instrument, so rinse the cuvettes and keep the optics clean.