My 2 cent thoughts: again
I have used a lot of diff. brands of PH meters over the years. Of
course the lab quality ones do hold calib. the best. They are just not
practicle unless you are makin money with it. I tried the new Extech
PH and temp meter about two years ago. I have worked on many Extech
proc. and duplicating equip. for 20 plus years and have felt they were
a good product. So far the PH meter has worked well. I did manage to
kill one by not having the probe locking ring tight and leaving it
floating in a solution of fixer tank cleaning solution. Then I layed
it in the floor on a towel to dry and steped on it crushing the S#$$^T
out of the probe tip and the connector.
It has 3 point cal.
Temp.
LCD readout
It floats! (for my clumsy hands a very needed feature cause it sucks
diggin in four feet of developer lookin for a meter)
The probe is replacable and you can change it to a TDS as well.
The probe portion has a cap with a solution sponge built in so it
isn't a pain to keep the tip in solution when not in use.
The probe tip is flat with a covering so you can messure a flat
surface like skin or as small as one drop of water.
I think I paid about 80.00 for them. That was wholesale.
That's what I have seen so far and have used them pretty heavy
ITSALLUPTOYOU
NOOK




On Sat, 01 May 2004 02:34:26 GMT, "PhalGuy"
wrote:

Thank you guys!

The Ph Meter I bought comes with 3 capsules of powder to be diluted in 100
ml of distilled water for calibration.
It`s 4.0, 7.0 and 10.0!
I got it on Ebay for 24.95 US which is a big deal since my hydroponic store
in montreal sell the same for 139.00 Can !

Bye

CLaude

"Ray" wrote in message
...
| I don't see why pH is connected only to folks growing in semi-hydroponic
culture - it should be of
| interest to all growers who use fertilizers and pure water, and wouldn't
hurt tapwaterers either.
|
| Anyway, I have a Hanna TDS meter, and it's a well-made device that is very
repeatable. Based upon
| my experience with that, I would thing that the Checker would be a pretty
good choice.
|
| When I was shopping for a pH meter, I checked with fellow orchid grower
John Talpa, who is a water
| professional, and certified as such. He makes his living via home and
commercial water treatment.
| According to him, and he also checked with his instrument wholesaler about
their biggest sellers,
| the most popular among pros was the Oakton pH Testr 2. It even came with
some buffer solution
| standards (pH 4, 7, & 10), but I bought more of the 7's, as that's closest
to the range we're
| interested to. No matter what you buy, spring for the disposable packs,
as they are stable until
| opened, and are perfect for calibrations with no other container needed.
|
| What I really like about it is that calibration is really easy: put the
device in the buffer
| solution, press the calibration button, wait for the meter to display a
number near that of the
| buffer - it blinks quickly when it thinks it's done), press another button
to lock it in, and
| voila', it displays the exact pH and you're done.
| --
|
| Ray Barkalow - First Rays Orchids - www.firstrays.com
| Plants, Supplies, Books, Artwork, and Lots of Free Info!
|
| . . . . . . . . . . .
| "PhalGuy" wrote in message
| s.com...
| Hello everyone!
|
| For those who grow in S/H and use a PH meter, what are your input about
the
| Hanna Checker PH meter!
|
| Can be used for ponds, soil, hydroponics, swimming pools, spas,
aquariums,
| etc.
|
| Features:
|
|
| a.. Large Readout Display
| b.. 0.01 pH resolution
| c.. Fast and accurate calibration
| d.. Battery Life: 3000 hours of continuous use
| e.. Wide Range: 0.00-14.00 pH
| f.. Replaceable pH Electrode
| SPECIFICATIONS:
|
|
| a.. RANGE: 0.00-14.00 pH
| b.. RESOLUTION: 0.01 pH
| c.. TYPICAL EMC DEVIATION: ± 0.1 pH
| d.. CALIBRATION: Manual 2-point using Trimmers
| e.. ELECTRODE: HI1270 (included)
| f.. BATTERY: TYPE/LIFE: 2 x 1.4V / 3000 hours typical
| Thanks
|
|
| --
| Claude
|
| www.picturetrail.com/phalguy
|
| Remove NOSPAM to reply
|
|
|
|