Hanna Checker Nitrite ULR HI764
The Hanna Checker Nitrite ULR HI764 bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate, while professional instrumentation can cost hundreds of dollars and can be time-consuming to calibrate and maintain. Hanna Checker Nitrite ULR is accurate, affordable and easy to use.
Nitrification is the biological oxidation of ammonia (ammonium ion) into nitrite followed by the oxidation of the nitrites to nitrates. The first step of this 2-step process is carried out in an aquarium by nitrifying bacteria. During this quick process, the ammonium levels drop while the nitrite levels increase. Since nitrite is just as harmful as ammonia, nitrite levels should be maintained at immeasurable levels. A mature biological filter should be able to keep nitrite levels low.
Also, if tap water is to be used in an aquarium, it is recommended that it be tested for phosphate, as well as silicate, ammonia, nitrate, nitrite, pH, and alkalinity.
Replacement Hanna Calcium Checker Reagent pack available here.
Four simple steps to results
- First, add sample to the included cuvette.
- Next, insert sample into the Checker and zero the instrument with your water sample.
- Remove sample and add the reagent
- Finally, place the vial into back into the Hanna Checker, press the button and read the results
Easier to use and more accurate than chemical test kits
Large, easy to read digits Auto shut-off
Single button operation – Zero and measure
Dedicated to a single parameter
Designed to work with HANNA’s reagents
Uses 10 mL glass cuvettes
Small Size, Big Convenience
Fits in the palm of your hand
Operated by a single AAA battery
Range: 0 to 200 ppb
Accuracy @ 25°C/77°F: ±10 ppb ±4% of reading
Light Source: LED @ 525 nm
Light Detector: silicon photocell
Method: adaptation of the EPA Diazotization method 354.1
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type: (1) 1.5V AAA
Auto-off: after two minutes of non-use
Dimensions: 81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”)
Weight: 64 g (2.25 oz.)
HI764 Checker is supplied with (2) sample cuvettes with caps, nitrite ULR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.