HANNA INSTRUMENTS HI781 Mini Nitrates Photometer (Narrow Range)

The HI781 Nitrates Checker HC Mini Photometer comes with 2 measuring cuvettes and caps, reagents for 25 nitrate tests, 25 filter papers, 1 filter holder, 1 mixing bottle with cap, 1 5 mL syringe with tip, 1 10 mL syringe, 1 1 mL graduated syringe, 1 plastic filling pipette, 1 16 gauge blunt needle and battery.

Why measure nitrate concentrations in aquariums?
Nitrates are produced from fish waste and food scraps. They strongly promote algae blooms and growth and cause stress to fish at relatively high concentrations.
The optimal content should be less than 10 mg/L and above 50 mg/L, it is recommended to partially replace the water with low-nitrate tap water (also to be measured before addition!)

Highlights of the HANNA Mini-photometer HI781 Checker HC Nitrates Narrow Range:
• Digital photometer at the price of a chemical analysis kit
• Quality, fast and accurate measurements
• Very easy to use (1 button)
• Lightweight (64 g) and compact, fits in any pocket
• Measurements in accordance with approved methods
• Large reading screen
• Robust and practical
• Definitely amazing

HANNA HI781 Checker HC Nitrates Narrow Range Specifications:
• Range: 0.50 to 5.00 mg/L (NO3-N) and 5.0 to 50.0 mg/L (calculated) with dilution
• Resolution: 0.01 mg/L (ppm)
• Accuracy: ±0.025 mg/L ± 2% of reading
• Method: Cholimetric
• Light source: 525 nm LED
• Light detector: Silicon photocell
• Power supply: 1 1.5V AAA battery.
• Auto-off: after 2 minutes of non-use
• Dimensions: 86 x 61 x 37.5 mm
• Weight: 64 g

Easy to use HI781 Checker HC Nitrates Narrow Range Mini Photometer:

1. Take a water sample and insert the cuvette into the photometer
2. Make a blank
3. Add the powdered reagent to your solution
4. Insert the cuvette into the photometer
5. Press the button and read the result within 10 seconds

Add your reagents or accessories now to save time and money later!
- HI93703-50 : Cleaning solution for measuring cuvettes
- HI781-11 : Solution for nitrates in seawater, narrow range
- HI781-25 : Reagents for nitrates in seawater, narrow range

The instructions are available in the download tab.