Extech PH100 ExStik Waterproof pH Meter

Other products by Extech

Product Description

From the Manufacturer
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 enhance 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 calibration 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) neck strap. For more convenience, purchase the EX006 weighted base, which holds both the sample cup and ExStik meter.

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 its 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.

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 ; 1 pounds
• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• Shipping: This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
• ASIN: B00023RYQ8
• Item model number: PH100
• Average Customer Review: 3.4 out of 5 stars See all reviews (5 customer reviews)
• Amazon.com Sales Rank: #16,796 in Home Improvement (See Bestsellers in Home Improvement)

Customer Reviews

Most Helpful Customer Reviews

8 of 9 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)

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.

2 of 2 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

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.

1 of 1 people found the following review helpful:

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

By	D. Vazquez - See all my reviews (REAL NAME)

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).