The Hanna Marine Low Range Nitrate Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Marine Nitrate Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
- Compact, Portable Design
- Built-in Timer
- Saltwater Compatible
Nitrate is a by-product of the Nitrogen cycle. Excessive amounts of Nitrates in a reef aquarium can promote the growth of undesirable organisms including algae and dinoflagellates while insufficient amounts can lead to starvation in which SPS and other corals will show signs including the loss of color and paleness. The HI781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically. The HI781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 ppm (mg/L) range is ideal for reef aquarium maintenance.
Designed as a more accurate alternative to chemical test kits, the HI781 provides quick, accurate results in four easy steps:
Features at-a-glance:
- Easier to use and more accurate than chemical test kits
- Small size, big convenience
- Ideal for aquariums and marine biology
Specifications:
| Nitrate Range | 0.00 to 5.00 ppm (as NO3–) |
|---|---|
| Nitrate Resolution | 0.01 ppm |
| Nitrate Accuracy | ±0.25 ppm ±2% of reading @ 25 °C (77 °F) |
| Nitrate Method | Colorimetric method. The reaction between nitrate and the reagent causes a pink/violet tint in the sample. This checker has been developed to work with seawater samples. |
| Photometer/Colorimeter Light Source | Light Emitting Diode @ 525 nm |
| Photometer/Colorimeter Light Detector | Silicon photocell |
| Battery Type/Life | 1.5V AAA Alkaline |
| Automatic Shut-Off | After 10 minutes of non-use |
| Environment | 0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing |
| Weight | 64 g (2.3 oz) |
| Dimensions | 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”) |
| Ordering Information | HI781 Checker HC is supplied with sample cuvettes with caps (2), nitrate reagent starter kit (reagents for 25 tests), filter holder, 10 mL syringe, 5 mL syringe with tip, mixing vial with cap, battery, and instructions. |
| Notes | Nitrite and Copper present will interfere with the measurement. |
Speedy Shipping and professional packaging
Thanks to our longstanding association with UPS FedEx DHL as well as other leading global carriers, we can provide various shipping options. Our warehouse personnel are extremely skilled and will package your items according to our precise and precise specifications. Your items will go through an extensive inspection and be safely packaged prior to being delivered. We ship to thousands clients every day in a variety of countries. This shows our commitment to becoming the biggest online retailer in the world. The warehouses and centers of distribution are situated in Europe and the USA.
Note: Orders that contain more than one item will be assigned a different processing time for each item.
Before shipping, all ordered products will be thoroughly inspected. The majority of orders are shipped within 48 hours. The delivery time is between 3-7 working days.
Returns
The stock is constantly changing and is not completely managed by us because of the involvement of several parties including the factory and our warehouse. The actual levels of stock can change at any point. You may not receive your purchase after it's been placed.
Our policy lasts 30 days. Unfortunately, if thirty days have passed after you bought your item, we will not be able to offer you a return or exchange.
In order to be eligible for a return your product must be unopened and in the same state that you received it. It should also be returned in the original packaging.
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