Extech PH100 ExStik Waterproof pH Meter

by Extech

Product Description

Amazon.com Product Description

Now you can test pH on the spot easily and accurately with the ExStik PH100 Waterproof pH Meter. The durable ExStik meter features a flat surface electrode for measuring pH in liquids, semi-solids, and solids. A built-in smart chip offers memory recording of 15 settings, allowing you to compare readings over time. The ExStik lets you know when the meter needs recalibration and when it's time to replace your pH electrode, so you can reuse it again and again with confidence. Because you can refill the ExStik quickly, you won't need to worry about the shelf life of its electrode.

ExStik Waterproof pH Meter At a Glance: Flat surface electrode measures pH in liquids, semi-solids, and solids Smart chip retains up to 15 readings to show trends in acidity or alkalinity Durable, waterproof design is able to withstand harsh environments Dual-alert system warns when to recalibrate or replace electrode Six-month limited warranty on parts and labor

Provides quick, on-the-spot pH measurements. View larger.

LCD screen displays ph level and temperature. View larger.

Accurately Measures pH and Temperature
The ExStik PH100 pH meter features a flat surface electrode that measures pH in liquids, semi-solids, and solids--no more electrode breakage or clogged junctions. The ExStik can detect any level on the pH scale with a resolution of 0.01 pH and an accuracy +/-0.01 pH. The meter also measures temperatures from 23 to 194 degrees Fahrenheit (-5 to 90 degrees Celsius) with an accuracy of +/-1.8 degrees Fahrenheit. By using fresh reference solution, the ExStik achieves continuously dependable results.

Refillable pH electrode maintains accuracy and removes guesswork.

Reusable and Refillable Electrode
When depleted, the pH electrode can be easily refilled, eliminating any concerns about electrode shelf life. One-, two-, or three-point calibration automatically recognizes buffer solutions (buffer solutions sold separately). The RENEW feature alerts you when it's time to replace the pH electrode, while the CAL alert tells you when it's time to recalibrate the meter.

Built-In Smart Chip Displays and Stores Readings
This meter is designed to make taking accurate measurements of pH levels simpler and more useful. It has a large digital display that indicates both pH level and temperature, while at the same time allowing you to watch continuous changes in acidity or alkalinity with an analog bar graph that indicates pH trends from a neutral point (pH 7.00).

The smart chip also features automatic temperature compensation, auto power-off, and low-battery indication. A display indicates when the reading is stabilized. Memory recall of up to 15 sequentially labeled readings allows you to track how readings have changed over time.

Durable and Reliable
The ExStik PH100 is completely waterproof (rated IP57), and sturdy enough to withstand harsh environments. Bring it with you anywhere--it weighs less than 4 ounces and floats in water.

The meter is 6-4/5 by 1-3/5 by 1-2/5 inches (H x W x D), and runs on four LR44 button batteries.

Versatile Home and Commercial Applications
Easy to use, the ExStik meter is an invaluable tool for measuring the pH in shampoo, body wash, facial cleansers, lotions, creams, and more. Use it to monitor pools and spas, or to measure acidity and alkalinity in soil, skin, and carpeting. It's valuable in hydroponic gardening or farming. Get important readings in cement, agriculture, fish farming, wastewater, antifreeze recycling, food preparation, cleaning supplies, and manufacturing of paper, pulp, and paint.

Optional Accessories to Customize Your Meter
To maximize your use of the ExStik PH100, interchangeable probes are available for chlorine and ORP (sold separately). You can also purchase a weighted base that holds a plastic sample cup and the ExStik meter, and buffer solutions for calibration.

Warranty Information
The ExStik PH100 Waterproof pH Meter is backed by a manufacturer's 6-month limited warranty on parts and labor.

What's in the Box
Meter, pH electrode, bottle KCI, two reference junctions, two removal tools, sensor cap, sample cup with cap, four LR44 batteries, neck strap, and user manual.

Product Description

The waterproof ExStik PH100 pH meter by Extech is an accurate, rugged and reusable stick pH meter with some unique data storage features that make it exceptionally easy to use and considerably enahnce its usability. The flat surface electrode allows you to measure pH in liquids, semi-solids, and solids and limits electrode breakage and clogged junctions. The RENEW indicator tells you when it's time to replace your electrode. The CAL alert ensures consistently accurate readings by telling you when you need to recalibrate. A Memory feature records and recalls 15 sequentially tagged readings, so you will know how your readings have changed over time. The LCD readout displays pH, temperature and an analog bargraph that shows trends in acidity or alkalinity, and indicates when the reading is stable. 1, 2 or 3 point alibration automatically recognizes buffer solutions. Other features include automatic temperature compensation, auto power off, low battery indicator, and data hold. The PH100 comes with a protective sensor cap, sample cup, four SR44 button batteries, and a 48-inch (1.2m) neckstrap. For more convenience, purchase the the EX006 weighted base, which holds both the sample cup and ExStik meter.

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Product Details

Data Sheet [130kb PDF]

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Product Manual [223kb PDF]

• Product Dimensions: 6.8 x 1.6 x 1.4 inches
• Shipping Weight: 6.4 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00023RYQ8
• Item model number: PH100
• Average Customer Review: 3.9 out of 5 stars  See all reviews (9 customer reviews)
• Amazon Best Sellers Rank: #13,353 in Home Improvement (See Top 100 in Home Improvement)
  • #47 in Home Improvement > Electrical > Tools & Testers > Multi Testers

Customer Reviews

Most Helpful Customer Reviews

9 of 9 people found the following review helpful:

3.0 out of 5 stars So So pH Meter, December 1, 2008

By 

Renaissance Woman "Renaissance Woman" (Oregon City, OR USA) - See all my reviews

This review is from: Extech PH100 ExStik Waterproof pH Meter (Tools & Home Improvement)

I have been using this instrument for 4 years and found that for the most part it works okay, however at times it has been known to suddenly stop working (it doesn't give a reading above 1 and/or has a strange flashing symbol in place of a number) for no apparent reason. In 4 years I've sent 2 units back to the manufacturer who sent replacements, but did not explain what was wrong or how to avoid future problems. I take good care of the instrument - cleaning, calibrating and storing correctly. The unit stopped working again a couple of weeks ago and I have to assume it needs a new electrode, even though there was no 'RENEW' signal (I've never actually seen the symbol the whole time I've used the meter). I do find I'm left guessing about what to do to make the meter work again if it packs up! Something else that bothers the heck out of me is that the electrode needs to be replaced fairly often (every 6 months - using it on average 2 to 4 times per week) - and $39+ each time hurts (and forget the refillable model too - never worked again after it needed refilling).

12 of 14 people found the following review helpful:

4.0 out of 5 stars PH100 PH surface meter, August 21, 2005

By 

C. Purwin "Joe Science" (New Engand) - See all my reviews
(REAL NAME)   

This review is from: Extech PH100 ExStik Waterproof pH Meter (Tools & Home Improvement)

The unit is accurate and works as advertised. Minor detail they DON'T mention. You really want to calibrate it for the most accurate readings. To do this you need PH 4 and PH 7 solutions which are NOT included. Luckily I have a friend in the chem business so I got some free. Otherwise you are stuck having to buy a bottle of each. The unit does work out of the box, comes with batteries (little watch style, so will be $$ to replace down the road, but hey the do give you batteries to start with) and does a decent job even without calibration.

8 of 10 people found the following review helpful:

1.0 out of 5 stars ExStik pH100 Meter Is A Terrible Product, August 16, 2008

By 

b. (usa) - See all my reviews

Amazon Verified Purchase

This review is from: Extech PH100 ExStik Waterproof pH Meter (Tools & Home Improvement)

The ExStik pH100 does not work. If I had the time, I'd make a video review to go along with these words. Even after calibration, using ExTech's own solutions, the pH100 fails to read pH levels anywhere near-accurate. It randomly reports its 'findings', even when using the same sample being tested. The fault may be with the included pH electrode (and sealed solution), which you have no way of knowing the condition or age of, because it's not packaged separately or appropriately for sensitive electronics. For the cost of this item, you'd expect some level of quality. Look elsewhere, because this product will disappoint both you and your wallet. But, if you still want to buy this piece of junk, I'll mail you mine for just the cost of shipping. You'll still be getting ripped off, but you won't feel so bad as purchasing at full price.