Pocket-Sized pH Meter
Manufactured by Hanna Instruments
BRAND NEW -
IN THE BOX
Buffer Solution Included
** SPECIAL OFFER ** SPECIAL OFFER**
Regular Retail Price
BUY IT HERE
This Hanna Digital pH
Meter is The Most Popular pH Meter for Use in Schools,
Pools, Salt/Freshwater Aquariums,
Gardening and all other water applicable
media. At the cost of just a few rolls of litmus paper, you
can have the industry's best pH tester. The Checker®1 supplies
you with fast accurate readings on a large easy-to-read LCD.
Unlike other pH testers, the Checker®1 electrode can be
changed and any pH electrode of different size or shape can be
used. The Checker®1 is fast, accurate, lightweight and
pocket-sized making it a valuable instrument for students and
others alike. Testing pH values has never been easier!
Checker 1 supplies you with fast and accurate readings on a large LCD.
The pH electrode of the Checker can be interchanged with any pH
electrode as long as it has a screw connector. Smaller, less rigid
electrode enables it to be used in laboratories.
- 0.0 to 14.0 pH
- +/- 0.2 pH
Battery Type/ Life
- 2X1.5V (included)/
- approx. 3000 hrs. continuous
Manual 1 or 2 points through trimmers using
7.01 buffer - Included and
4.01 buffer - sold separately
10.01 buffer - sold separately
- 32 to 122°F (0 to 50°C); RH 95%
- 7.9 x 1.1 0.8" (66 x 50 x 25mm)
70 g (2.5 oz)
- HI-1270 (included
All for ONLY $32.40
Each meter is pre-calibrated by Hanna at the factory as a convenience.
Although each meter is calibrated at the
factory, factors such as bouncing around during shipping, weather
conditions and sitting in a warehouse prior to shipping can cause
calibration to go out ever so slightly. For the most accurate reading possible,
we recommend that you check the calibration prior to use and adjust if
Easy To Use
Simply push the switch to the ON position. Stick the tip of the meter
into your test sample. The pH will be shown in the large, easy to read LCD
Care & Maintenance
The tip of the pH electrode needs to be
kept wet at all times when not in use. To
keep the tip wet when not in use, Hanna recommends putting a few drops
of a storage solution in the electrode cap. The supplied 7.01 buffer
solution can be used as the storage solution. Simply put a few drops of the pH 7.01
buffer solution in the electrode cap and snap the cap on the tip of the
electrode. If the tip does dry out, simply soak it in the 7.01 buffer
for a few hours.
Your pH meter may need
to be re-calibrated from time to time. The checker1 is factory calibrated using
a 2 point system. The meter is first calibrated to neutral using the
7.01 buffer solution. It is then calibrated to EITHER the acidic slope
using the 4.01 buffer OR to the alkaline slope using the 10.01 buffer.
If you are testing solutions that are in the
mid/neutral pH range then calibrating in JUST the 7.0 buffer should be
sufficient. If the samples you are testing are more acidic, calibrate in the 4.01
buffer after calibrating in the 7.0. If your test samples are more alkaline then calibrate your meter
in the 10.01 buffer after calibrating in the 7.0. For the most accurate results, Hanna recommends
that you calibrate your meter prior to each use.
Additional Calibration Buffers and
Storage Solution are available in our
TO GO TO OUR eBay STORE
Checker1 pH Meter with
FREE 7.01 Calibration Buffer
20ml Packet of
pH 7.01 Buffer Solution.
your purchase of the Hanna Checker1 pH meter we will include a
free packet of
7.01 buffer solution to be used as a storage solution to keep your
electrode tip wet and as a calibration solution. Each packet contains 20 ml of
pre-mixed, ready to use buffer solution. Simply tear or cut off
the top of the packet, insert your pH meter, and adjust the trimmer
screw on the top of the meter until you reading displays 7.01. Add a
drop of the solution to the probe cap to keep your probe wet and
ready for your next use. To store your buffer solution, just fold over the top of the foil packet
a few times and put it up for storage or pour
the solution in a clean baby food jar or other small jar until you
need it again.
Ready to use when you are.
need to deal with those messy powdered pH capsules that require you
to run all over town trying to find pure de-ionized/distilled water
to mix the powdered buffers in (not to mention the added cost of
buying de-ionized or distilled water).
$4.95 Value - Yours Absolutely Free!
Super Fast Shipping
All orders are shipped
next business day after payment has cleared.
Your satisfaction is our goal.
Buy with confidence from us
since Feb 2002
of our products carry a 100% Satisfaction Guarantee!
If you are not
happy with any of our products, for any reason, just send us back the item(s),
along with a copy of your Packing List/Invoice, within 14 days from date of
receipt, and we will refund
your purchase price (excludes shipping)! Item must be returned in
original packaging, undamaged and in working condition. Cost of shipping
to return the item is the responsibility of the buyer.
If any item is
damaged, broken or not working upon receipt, you must contact us within 3 days
to let us know.
*This product also carries a manufacturers 6 month warranty.
Shipping and handling via USPS 1st Class Mail is free.
We ship via USPS 1st class mail w/delivery confirmation within 1 business day after
payment has cleared.
Three or more testers are shipped USPS Priority mail.
Estimated delivery time: 3-7 business days. Delivery times may vary and are
Shipping weight: 5 ounces
If any package is undeliverable due to an error by the buyer (i.e. you gave us
an incorrect address) and the package is returned to us; the buyer will be
required to pay postage for reshipment to a correct address.
must clear bank before package is shipped.
We must receive
your payment within 3 days after purchase.
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We have been
authorized HM Digital & Hanna Distributors for over 10 years.