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Product code: HI782
Brand: HANNA INSTRUMENTS
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HI782 NITRATES TEST – High Range Checker for Marine Aquariums
The HI782 Nitrate Test from Hanna Instruments is a high-range, handheld photometer specifically developed for nitrate measurements in marine water up to 75 ppm. It bridges the gap between visually interpreted chemical test kits and professional lab instruments, offering precision, speed, and ease of use at an affordable price.
Unlike standard kits limited by subjective color comparison, the HI782 uses a fixed-wavelength LED light (525 nm) and a silicon photocell detector to deliver reliable and reproducible results, ideal for nutrient management in marine tanks with higher nitrate levels or under cycling conditions.
Technical specifications:
Range: 0.00 to 75.00 ppm of nitrate (NO₃⁻)
Resolution: 0.01 ppm
Accuracy: ±0.25 ppm ±2% of reading at 25°C
Method: Colorimetric (sample turns pink/purple upon reaction)
Light source: LED at 525 nm
Detector: Silicon photocell
Power supply: 1 x 1.5V AAA battery
Auto shut-off: After 10 minutes of inactivity
Operating conditions: 0-50°C; max. 95% RH (non-condensing)
Dimensions: 86 x 61 x 37.5 mm
Weight: 64 g
Included in the box:
HI782 Checker
2 sample cuvettes with caps
Reagents for 25 tests
10 mL and 5 mL syringes
Mixing vial with cap
1.5V AAA battery
Instruction manual
Note: The presence of nitrites or copper may interfere with results.
Why choose the HI782 Nitrate Checker:
Designed for higher nitrate concentrations in saltwater aquariums
Precision photometric readings in a pocket-sized device
Ideal for cycling tanks, fish-only systems, and nutrient-rich reef tanks
Reliable measurements with minimal user error
Simple one-button operation
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