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Aquarium Supplies
Hanna Instruments Checker pH Pen

Hanna Instruments Checker pH Pen

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Hanna Instruments Checker pH Pen Information

Product Manuals & Documentation

  • High accuracy with 0.01 pH resolution
  • Two point fast and accurate calibration
  • Usable with virtually any electrode that shares the same connector
  • 3000 hours of battery life
  • HI 1270 small diameter probe fitseasily into a test tube
  • Supplied with HI 1270 pH electrode, batteries and instructions
The pH Checker® series supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration.

The pH electrode of the Checker® can be easily replaced. You only need to unscrew the electrode from the meter body and screw on a new one.

The Checker® is fast, accurate, lightweight and with 3000 hours of battery life, you don`t have to worry about frequent battery replacement.

  • Range 0.00 to 14.00 pH
  • Resolution 0.01 pH
  • Accuracy ±0.2 pH
  • Calibration manual, 2 points
  • Electrode HI 1270 (included)
  • Battery Type / Life 1.5V (2) / approximately 3000 hours of continuous use
  • Environment 0 to 50°C (32 to 122°F); RH max 95%
  • Dimensions 66 x 50 x 25 mm (2.6 x 2.0 x 1.0") - without probe
  • Weight 50 g (1.8 oz.) without probe
  • pH Calibration Solution and Electrode Storage Fluid are sold separately

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 reagents and buffer solutions.

Hanna Instruments Checker pH Pen Reviews

Average Rating
(83 reviews)
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of 9

Hanna meter

Reviewers Rating Excellent!

Posted: 6/9/2014 from BILOXI, MS UNITED STATES
5.0 5
Experience Level: Expert

Comments: Package arrived on time and was packed well. The Hanna meters are Much easier than the red sea test kit and I would recommend this kit for someone has any issue with determining the color variations. Very accurate and makes the hobby much more enjoyable.

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HANNA HI 711 Checker HC

Reviewers Rating Excellent!

Posted: 5/24/2014 from WHEAT RIDGE, CO UNITED STATES
4.5 5
Experience Level: Beginner

Comments: We use this unit in the lab. The unit works as advertised as quick test for orthophosphate when we don't have time for ICP

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very pleased

Reviewers Rating Excellent!

Posted: 2/6/2014 from COVENTRY, RI UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: great product for the money.highly recommend.

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Hanna checker alkalinity

Reviewers Rating Excellent!

Posted: 1/31/2014 from MEMPHIS, TN UNITED STATES
4.5 5
Experience Level: Beginner

Comments: i can't really say its accurate cause i don't have anything to base it on. but i would say it is simple to use and no more figuring out the color. although i don't like that ppm is used as supposed to dKH but i guess they have a reason for that. i can always convert it.

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Love it!

Reviewers Rating Excellent!

Posted: 1/18/2014 from LAKEWOOD, CA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: My wife has a complete set of test kits that use little charts to identify a general range of measurement. They are ok, and get the job done, but I absolutely prefer the precision and accuracy of the Hanna products to the test kits that test a range. It's like comparing the difference between using a hand saw and a precision table saw. I have the Hanna test kit for alkalinity, phosphate and calcium. I only wish that the nitrate checker were more affordable.

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Reviewers Rating Great

Posted: 1/6/2014 from San Pedro, CA UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: The only thing I don't like is the packets of reagent its really hard to get the powder out. Long skinny packets would be better. Overall it is easier than the test kits

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Calcium and Alkalinity

Reviewers Rating Excellent!

Posted: 1/5/2014 from DOVER, DE UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: These are awesome instruments! I previously used the Red Sea test kit and looking for the correct color is unachevable. The Hanna digital meters are a sure bet, don't waste your time or money using anything else. One thing I will mention is I saw a video on the Hanna Ca checker and the guy said they replaced the "Reagent B" with a liquid vs. the powder. I recieved the powder packs with mine and it is hard to be sure all the powder makes it into the tester. Overall, both of these are a 5star, I also recommend the Hanna ph probe.

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easy to use

Reviewers Rating Excellent!

Posted: 11/21/2013 from ANTELOPE, CA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I liked how easy it was to use, it took the fuss out of testing.

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Phos checker

Reviewers Rating Excellent!

Posted: 11/13/2013 from LANCASTER, CA UNITED STATES
5.0 5
Experience Level: Expert

Comments: love it, very accurate,no more looking at colors.

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Not up to standard

Reviewers Rating Below Average

Posted: 10/29/2013 from HENRICO, VA UNITED STATES
1.5 5
Experience Level: Intermediate

Comments: I have used the Hanna Alkaline tester several times and immediately had a LFS do the same test and the Hanna is always off by 3+ dKH. If I get 121 ppm (which converts to 6.78 dKH), the LFS gets 9.5 - 9.7. Very disappointing. The Hanna Phosphate tester is always right on the mark with the LFS tests.

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of 9
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July 21, 2014
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