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The Pinpoint calibration will work perfect with the apex pH probe. Feel free to let us know if you have any further questions!
If your going to have the probe out of the tank for a long time you don't want it to dry out, so it should be stored in a probe storage solution. As far as calibration itself goes, most of us just open the top of the calibration solution, submerge the probe in the pouch and follow the controllers calibration procedure.
Pinpoint High Precision pH Calibration Solution sold in single use packets.
Almost all pH monitors and controllers will require two points of reference to accurately monitor the pH that the probe is reading. You will want to use calibration solutions that are on either spectrum of the pH you intend to monitor. For reef tanks where the pH is normally 7.8-8.5 then you would want to use calibration solution 7.0 and 10.01. For calcium reactors on saltwater tanks or freshwater aquariums where the pH is normally below 7.0, you would want to use 4.01 and 7.01 for calibration of the probe.
4.01 pH - The lower threshold reading your pH monitor or controller will require for use with calcium reactors for saltwater aquariums, solutions below 7.00 pH and also most freshwater aquariums.
7.01 pH - Neutral pH calibration packet. This is used by almost all pH monitors and controllers for calibration.
10.01 pH - The higher threshold reading your pH monitor or controller will require for use with saltwater aquariums or solutions above 7.00 pH
Calibration packets can be stored in a cool dry area for up to 1 year.
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Simple & Easy By John on 7/17/2016John wouldn't recommend this product to a friendWorks every time. The key to keep the temp stable while calibrating is to keep it in tank water. I simply clip it to the top of my tank submerged in water and you're off and running.
good stuff By Mike on 9/19/2014Mike would recommend this product to a friendReally 11.00 bucks shipping if this is all I need?
Works as expected By Bob on 3/11/2014Bob would recommend this product to a friendExcellent product
Making sure it's right By Melvin on 1/19/2014Melvin would recommend this product to a friendThe fluid is great for making sure you are getting accurate readings from your equipment.
5 stars By jose on 11/7/2013jose would recommend this product to a friendgreat product would buy again
Great By Maria on 6/13/2013Maria would recommend this product to a friendCalibrates my pinpoint probe.
Works as described :)
great product, great price By Jason on 5/16/2013Jason would recommend this product to a friendused to calibrate my apex works great. and very good price
great product By GT-Reefer on 3/7/2013GT-Reefer would recommend this product to a friendI use the 7 and 10 and it works great. I pre rinse my probe in RO/DI, then start my calibration, but I will start using a little cal fluid to rinse away the water for a more accurate calibration.
Exactly what you expect, shipped lighting-fast by BRS. By Chuck on 8/13/2012Chuck would recommend this product to a friendThis product works great, is very competitively priced, and I like knowing when I order items like this from BRS they'll arrive within a few days without hassles or delays. I'll definitely be getting more from BRS when I need them.
Worked like it should By Andy on 8/1/2012Andy would recommend this product to a friendWorked nicely to calibrate my pinpoint probe.
Worked like it should By Andy on 8/1/2012Andy would recommend this product to a friendChecked it against some other calibration fluid and it is dead on.
Cheap and easy By Matthew on 2/21/2012Matthew would recommend this product to a friendNeeded the 4 and 7 for my RFI pH controller. Easy to use. I've heard that some people will rinse the probe in some of the solution and pour the rest (3/4 or so) in a tall shot glass to make sure the probe is clear of water or other elements.