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  • Hanna Instruments HI 711 Checker HC Handheld Colorimeter, For Total Chlorine
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Hanna Instruments HI 711 Checker HC Handheld Colorimeter, For Total Chlorine

10 customer reviews
| 3 answered questions

List Price: $55.00
Price: $51.27 & FREE Shipping. Details
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Specifications for this item
Brand Name Hanna Instruments
EAN 4016138661408
Item Weight 2.24 ounces
Number of Items 1
Part Number HI-711
UNSPSC Code 41112201

The HI 711 is a portable meter for measuring chlorine in natural, waste, recreation and drinki... Read full product description



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Product Features

  • More accurate than chemical test kits, less expensive than professional testing
  • Single-button operation for ease of use
  • Uses EPA-approved DPD method 4500-Cl G, for uses with these requirements
  • Large LCD screen for readability
  • Auto shut-off to extend battery life

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Product Details

Spec Sheet [1.15mb PDF]| User Manual [298kb PDF]
  • Product Dimensions: 1.5 x 2.4 x 3.2 inches ; 2.2 ounces
  • Shipping Weight: 11.2 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B003IKNJN4
  • Item model number: HI711
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (10 customer reviews)
  • Amazon Best Sellers Rank: #15,349 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Frequently Bought Together

Hanna Instruments HI 711 Checker HC Handheld Colorimeter, For Total Chlorine + Hanna Checker Handheld Colorimeter, Total Chlorine Refill + Hanna Checker Handheld Colorimeter, Free Chlorine Refill
Price for all three: $71.07

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Product Description

The HI 711 is a portable meter for measuring chlorine in natural, waste, recreation and drinking waters.

The HI 711 bridges the gap between less accurate chemical test kits, and expensive professional test instrumentation. To use, zero the instrument with your water sample, then add the reagent. Place the vial into the checker, press the button, and read the results within seconds.

The meter has a range of 0.00 to 3.50 ppm (mg/L) + or – 3% of the reading (+ or – 0.03 ppm (mg/L) at 25 degrees C, with resolution 0.01 ppm (mg/L). It operates in temperatures from 0 to 50 degrees C (32 to 122 degrees F)/RH max 95%. The device operates on one 1.5V AAA battery, with an auto-off function that shuts off the device after two minutes of non-use. Dimensions are 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”), with weight 64 g (2.25 oz.).

Chlorine is a common disinfectant for water, and ensuring proper levels is important in many situations. Chlorine colorimeters are used for monitoring quality control in many applications such as swimming pools, sanitation, and drinking water.

Hanna Instruments manufactures a wide variety of analytical instrumentation, including pH meters, multi-parameter meters, electrodes, chemical reagents, and buffer solutions. Founded in 1978, Hanna is headquartered in Woonsocket, RI, with subsidiaries in 32 countries. Hanna Instruments holds many firsts in the field of analytical instrumentation, including a pH electrode with a built-in temperature sensor, an electronic pocket-sized pH tester, and a replaceable electrode pH pocket tester. To ensure the quality of its products, Hanna is a vertically integrated manufacturer and does not subcontract any part of its manufacturing.

What’s in the Box?

  • Two sample cuvettes and caps
  • Six powder reagents for free chlorine
  • One 1.5 V battery
  • Instructions

Customer Questions & Answers

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Most Helpful Customer Reviews

6 of 6 people found the following review helpful By Bass Cadet on February 15, 2014
Some instruments are purposely limited to encourage additional purchases. I believe this is one of those instruments. It appears there are several wavelengths and times for different measurements. The wavelengths are determined by the LED color while a resistor in the base of the unit apparently determines the countdown time. In summary, it means a single unit can be used to measure multiple parameters as long as the reagents and reaction times are correct.

With two cuvettes, the free chlorine checker can be used for both free and total chlorine as well as other 525nm based tests. I tried this with free chlorine and total chlorine tests and think it is an excellent alternative to Taylor test kits. The Taylor kits (K2005 in particular) require matching light shades of pink to determine chlorine levels. Even holding up to light is not always conclusive and the measurement tolerance is roughly ±0.5 PPM.

This meter yields an easy to read number. All the difficulties of pouring the reagent and setting the timer are eliminated if the user simply takes two samples, uses one as the control, and then manually times the wait period (1 minute for free chlorine, 2.5 minutes for total chlorine). Just before the time is completed, put in the unreacted sample, let the unit take the baseline measurement, and then insert the reacted sample and let the checker do its magic. I compared the results to the Taylor test kit and obtained relatively similar readings. The Taylor test kit I have is quite old and the reagents are well past expired (thus the reason for buying this checker). I also used this checker with the Taylor reagents and also obtained relatively similar readings. I purchased 100 test packs for both free and total chlorine so I am set for a while.
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4 of 4 people found the following review helpful By Greg G. on August 25, 2013
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Unlike the HI 729 Fluoride test, this one is really simple. You zero the device using your sample before you add the reagent. You then add the powdered reagent and run the test. I think you have to wait 2 minutes 30 seconds for the results. (Perhaps this just seemed simple after I fully understood how to get accurate results out of the Fluoride test.)
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3 of 4 people found the following review helpful By Amazon Customer on October 20, 2012
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A great and more product for measuring chlorine in water. It's digital reading takes out all guessing work and it doesn't require sunlight to be accurate in comparing colors for reading. However, it does consume sacks of additives require for measuring chlorine in water, so my advise is to purchase a good amount of sacks to use them in the test. Also, another recommendation is to carry out this test every a month or so, and use other product strips for quick tests.
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3 of 4 people found the following review helpful By Stoneoak on February 19, 2013
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The product works as advertised. The only reason it lost one star was because of the instructions. They were anything but clear and concise. Had to figure out part of it on my own. Other than that, great product so far.
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Works great and allowed me to check that my water is free of chlorine (after treatment) for home brewing. Read and follow the instructions carefully--the unit works by making a comparison of two measurements and if you get a step wrong you have to start over.
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Want to discover more products? Check out these pages to see more: hanna checker kit, hc, tester