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  • Hanna Instruments HI 98107 pHep pH Tester, with +/-0.1 Accuracy
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Hanna Instruments HI 98107 pHep pH Tester, with +/-0.1 Accuracy

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List Price: $43.70
Price: $39.65 & FREE Shipping. Details
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Specifications for this item
Brand Name Hanna Instruments
Part Number HI 98107
Number of Items 1
EAN 5053184545398
Inside Depth 6.9  inches
Measurement Type pH
Size With +/-0.1 Accuracy
Style Name Portable
UNSPSC Code 41115603

The HI 98107 pHep pH Tester is a portable pH meter with a replaceable electrode and a non-clog... Read full product description



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Product Features

  • Non-clogging fiber junction and replaceable electrode to prolong life of the meter
  • Two-point manual calibration for ease of use
  • Ergonomically designed casing
  • Large LCD screen for readability

Product Details

User Manual [103kb PDF]
  • Product Dimensions: 50 x 50 x 50 inches
  • Shipping Weight: 2.4 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: B002NX0VY2
  • Item model number: BPSIN01633
  • Average Customer Review: 2.8 out of 5 stars  See all reviews (56 customer reviews)
  • Amazon Best Sellers Rank: #27,904 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 98107 pHep pH Tester, with +/-0.1 Accuracy + General Hydroponics Ph 4.01 & Ph 7.0 Calibration Solution Kit - 8 Ounces + Hanna Instruments HI 70300M Storage Solution for pH/ORP Electrodes, 230mL Bottle
Price for all three: $65.53

These items are shipped from and sold by different sellers.

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Product Description

The HI 98107 pHep pH Tester is a portable pH meter with a replaceable electrode and a non-clogging, replenishable fiber junction.

Featuring a large easy-to-read LCD screen, the tester provides fast and accurate pH readings in a rugged and ergonomically designed casing. The HI 98107 has a replaceable electrode and renewable reference junction, which helps prolong the life of this tester. With the replenishable junction, simply pull 1 to 2mm (1/8'') of the junction out with tweezers to recondition the pH electrode. This procedure can be repeated up to 15 times, before the whole fiber is removed.

The HI 98107 tester functions in temperatures of 0 to 50 degrees C (32 to 122 degrees F), and has a range of pH 0.0 to 14.0 (+ or - 0.1 pH) with a resolution of 0.1 pH. It is calibrated manually to 2 points. The HI98107 is an updated version of the HI96107 (pHep) pH meter. The dimensions are 175 x 41 x 23 mm (6.9 x 1.6 x 0.9") and the weight is 95g (3.4 oz.).

pH testers measure the acidity or alkalinity of a substance and are commonly used by researchers, manufacturers, and hobbyists.

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?

  • Protective cap
  • Calibration screwdriver
  • Four 1.5V batteries
  • Instructions

Customer Questions & Answers

Customer Reviews

2.8 out of 5 stars

Most Helpful Customer Reviews

52 of 54 people found the following review helpful By Bomb Hills on January 22, 2010
This is the first ph tester that I have ever used. Works good, seems accurate. I did have to calibrate it by one point when I took it out of the box. Be careful of the top where the on/off switch is at. I accidentally popped it off and the wire connecting to the battery pack broke, a little bit of soldering took care of that. The only way you can get the top back in place is to remove the screw and slide the inside out from the case. The instructions fail to mention that point.
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106 of 117 people found the following review helpful By Donald E. Brown on January 19, 2010
Verified Purchase
Newcomers to pH testing should note that the use and maintenance of this instrument requires accessories that must be ordered separately.
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29 of 30 people found the following review helpful By Jason on October 4, 2011
The meter works great for a $40 pH tester. I see all the people on here complaining that you have to buy separate calibration solutions. These people know very little about pH testers, they all need to be calibrated from time to time. I have found that once a month is sufficient. Hanna has foil packets of calibration solution that my hydro store sells for $2 a piece. Hardly more than the unit itself. If you want to be completely accurate, you are supposed to use new calibration solution every time. Think about it, you put it in water (or whatever you are testing), shake off excess, then in the 7.0 to calibrate, then shake off again and then put in the 4.0 solution. Well, every time you do this a little of the previous solution gets in new solutions. Over time this will change the reference solution. Seems to me most of the reviewers should just be using strips as this or any other digital unit is too complicated for them. The only reason I did not give 5 starts, is my first unit had to be replaced as it would not calibrate low enough on 7.0(would only go to 7.3) after a few months. The replacement unit (covered under warranty)has been flawless, so the first was probably broken from the factory.
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18 of 18 people found the following review helpful By 04silvrz on September 4, 2011
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I have been using this product for the last couple months. at first it seemed fine and actually even now it seems fine because when u put it in calibration solution it is always close. but, when you mesure water it is completely off. i found this out the hard way, i couldn't figure out what the problem was till I test the water with a liquid PH test. This is was reading all kind of different stuff, such a peice of crap. Don't waste your money, I wish I would have just gotten one of the more expensive ones to start out with. I have had 2 cheap ones now and they both failed.
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75 of 91 people found the following review helpful By Debbie Lee Wesselmann TOP 100 REVIEWERVINE VOICE on April 15, 2010
I bought this Hanna pH tester because I wanted to easily test my soil pH without having to mix it into a set of little vials, add solutions, and then analyze the color. Well, I should have done more research, because this pH tester requires so many solutions -- storage solution, buffer solution, and solutions that are high or low pH-specific -- that it becomes a major production. If the solutions came with the unit, it wouldn't have been so bad, but tracking down all the necessary supplies ended up being more expensive than the tester itself.

Although the device does indeed work, it's not a purchase I'd recommend for the casual user. For the scientist or individual who does a lot of pH testing (say, in a pool), this is probably a five-star product, but for those who just want to take a reading now and then, it gets one star from me, not because it doesn't work (it does) but because the effort simply isn't worth it. For instant, no-fuss soil pH reading, try Luster Leaf 1818 Rapitest Mini 4-in-1 Soil Tester.

-- Debbie Lee Wesselmann
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7 of 7 people found the following review helpful By Michael Lepp on April 11, 2013
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This meter is much better designed than competitive products (see also my review of the Milwaukee Instruments pH600AQ pH Tester). The ergonomics are much better. It has a switch that can be set to continuously read and has the calibration screws mounted on the side. This allows you to hold the instrument with one hand and adjust the settings on the side while being able to read the display continuously. This makes calibration easy and precise.

The meter has two point calibration at 4 and 7.

I use this instrument to measure pH during mashing. I use Bru’n Water spreadsheet [...] to predict pH since a lot of the mashing happens very quickly, making after the fact adjustments less useful (although I still mash for an hour and then fly sparge very slowly). I have measured several batches and find that darker malts go a little lower in pH than predicted and lighter malts go a little higher. Using this experience, I find that I now hit target mash pH usually within +/- 0.1 but never more than 0.2 off and that is plenty good enough. I do not have to measure pH for every batch, but do so every couple of months and if I am changing my process.

What to expect from any meter at this price point:

1) You will need to purchase calibration solutions which run $8 – 10 per 8 oz bottle. I use about an ounce at a time for a calibration and found that once per month is frequently enough. I will pour that ounce out of the battle, calibrate and then pour solution into a secondary bottle (an old thoroughly cleaned spice bottle works great) for reuse and then use that three or four times before discarding and going with fresh solution. While I would not recommended this for critical applications, it works good enough for my needs.
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Most Recent Customer Reviews

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