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Hanna Marine Nitrate Low Range Checker

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£69.99
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Hanna Marine Nitrate Low Range Checker
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Hanna Marine Nitrate Low Range Checker

Hanna Marine Nitrate Low Range Checker

The HI-781 Nitrate Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of nitrate colorimetrically. The HI-781 is designed specifically to measure low levels of nitrate in a saltwater aquarium. The 0.00 to 5.00 range is ideal for reef aquarium maintenance.

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 colour and paleness.

Key Features: 

Test Results in 4 Easy Steps
Quick results from a single button in 4 easy steps. First zero the Checker with an empty vial inside. Next place a 10ml water sample inside the vial and add the included reagent. Return the now full vial to the checker. Press the button and read the result.

More Accurate than Chemical Test Kits
Uses a zinc reduction method. The result given is accurate to ±0.25 ppm between 0 to 5 ppm. Most chemical test kits on the market are only accurate to ±2 ppm.

Hand-held Portable Design
Small compact size with a single button and powered by only one AAA battery (included) makes these Checkers from Hanna Instruments incredibly versatile and portable. Perfect for aquarists, aquaculturists, fish keepers, and even scientists in the field. 

Contents

  • HI-781 Marine Nitrate Checker®HC
  • Sample cuvette and cap (2)
  • Marine Nitrate Low Range reagent starter kit (reagents for 25 tests)
  • Filter paper (25)
  • Filter holder (1)
  • Mixing vial and cap (1)
  • 5 mL syringe with tip (1)
  • 10 mL syringe with tip (1)
  • 1.5V AAA Alkaline battery (1)
  • Instruction manual

Technical Specification

Ammonia Nitrite Phosphate Alkalinity Nitrate Phosphate Calcium
Model HI-700 HI-707 HI-713 HI-772 HI-781 HI-774 HI-758
Suitability Freshwater Marine/Freshwater Marine/Freshwater Marine Marine Marine Marine
Tests For NH3-N NO2-N PO₄³⁻ dKH NO₃- PO₄³⁻ Ca
Range 0.00 to 3.00 ppm 0 to 600 ppb 0.00 to 2.50 ppm 0.0 to 20.0 dKH 0.00 to 5.00 ppm 0 to 999 ppb 200 to 600 ppm
Resolution 0.01 ppm 1 ppb 0.01 ppm 0.1 dKH 0.01 ppm 1 ppb 1 ppm
Accuracy ±0.05 ppm ±20 ppb ±0.04 ppm ±0.3 dKH ±0.25 ppm ±15 ±6%
Dimensions 82 x 61 x 38 mm 82 x 61 x 38 mm 82 x 61 x 38 mm 82 x 61 x 38 mm 82 x 61 x 38 mm 82 x 61 x 38 mm 82 x 61 x 38 mm
Weight 64g 64g 64g 64g 64g 64g 64g
Battery 1 x AAA 1 x AAA 1 x AAA 1 x AAA 1 x AAA 1 x AAA 1 x AAA
Product Highlights
  • Designed to accurately test Nitrate levels in saltwater aquariums
  • Small palm-sized design
  • Accurate from ±0.25 ppm ± 2% of reading
  • Dedicated to a single parameter
  • Uses a single AAA battery
  • Auto Power Off after 10 minutes in inactivity
  • Built-in timer for timed reaction readings

Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.

Our chosen couriers are DPD and Royal Mail. If an order is dispatched directly from a manufacturer then you may have a different courier delivering your order. Full tracking details for all orders sent by DPD will be provided when your order is shipped. You can choose ‘Express Courier’ to receive this service on any standard order. Any order sent from our suppliers, or with DPD will only be delivered Monday - Friday.

All stated delivery times begin from the moment your order is accepted which is when your order is shipped from our warehouse our suppliers. An order confirmation email is not the acceptance of an order by us.

A signature is required for all orders sent via DPD, at which point the responsibility for all consignments passes to you. If you have specified another recipient (who is not you) for delivery purposes, then you accept that evidence of a signature by the said recipient (or another appointed person) at your delivery address is evidence of delivery and fulfilment by DPD and this accepts the transfer of responsibility to yourself.  

We do not ship orders internationally.

To see a full list of our delivery charges and to read our terms and conditions, click here.

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