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While the Hanna Nitrate Checker is a good quality product, it's my least favorite. Let me tell you why. Link to the checker is below the fold!
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Table of Contents:
0:00 - Intro
00:14 Unboxing
01:50 How To Dilute Sample
02:47 How To Use Test Kit
06:57 Review- Why I'm Not Using This Test
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Music: [ Ссылка ]
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From the Manufacturer:
HI781 Marine Nitrate Checker HC Handheld Colorimeter - Hanna Instruments

The HI781 Nitrate Checker HC by Hanna Instruments is a simple and accurate handheld colorimeter that uses the Beer-Lambert principle to determine nitrate concentration. The HI781`s low range of 0.00 - 5.00 makes it ideal for measuring the low nitrate levels found in saltwater aquariums.

Why are Nitrate levels important?
Excess nitrates in a reef system can lead to an overgrowth of undesirable algae and dinoflagellates. Alternatively, not enough nitrates can lead to starvation for SPS and other corals.

Features:
Low range is ideal for saltwater aquariums
Easier to use and more accurate than chemical test kits
Dedicated to a single parameter
Simple one-button operation
Digital read out for added convenience
Compact size for easy travel and storage

Specifications
Range 0.00 to 5.00 pm (m/L) NO3
Resolution 0.01 pH
Accuracy @ 25°C/77°F ±0.25 ppm ±2% of reading
Light Source LED @525 nm
Light Detector Silicon photocell
Method Zinc reduction method
Auto-off After ten minutes of non-use
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Battery Type (1) 1.5V AAAWhat`s Included:
(1x) HI781 Checker HC
(2x) Sample cuvettes with caps
(1x) Nitrate Reagent starter set (reagents for 12 tests)
(1x) Filter holder
(1x) 20 mL syringe
(1x) 5 mL syringe with tip
(1x) Mixing vial with cap
(1x) Instructions and quick start guide

Accessories (sold separately):
Reagent set for 25 tests
Calibration set
Manufacturer Info
Hanna Instruments USA Aquarium Supplies
Hanna Instruments is a leading manufacturer of analytical aquarium instrumentation. They were founded in 1978 and are headquartered in Woonsocket, Rhode Island. When Hanna introduced pH Electronic Paper in 1986 it literally revolutionized the world of testing by allowing millions of people in various industries to test for pH in a simple, accurate and affordable way. Hanna employees are constantly challenging themselves to improve on existing technology and to invent new testing techniques with the common goal to simplify analytical testing. This applies not only to instrumentation, but also to sensors development, reagents and chemicals. Hanna also believes in controlling the quality of their products from inception to delivery so they manufacture everything themselves, from meters and electrodes to chemical
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Filmed With:
- Camera- [ Ссылка ]
- Vlogging Mic- [ Ссылка ]
- Aluminum Tripod- [ Ссылка ]
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Edited On:
Imac- 2019, 40gb Ram, i5 processor
Final Cut Pro X

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