- Double Junction Lab Grade pH Probe - Bulk Reef Supply
Why does BRS recommend this?
When it comes to probes not all are built alike. We went through many different brands of probes to bring one in that we were comfortable putting our name on. With high-quality materials, the BRS Lab Grade pH probes will last longer than most other standard grade probes while giving more consistent readings in between calibrations.
High quality, American-made pH probe to meet your saltwater aquarium needs.
- Made in the US under strict quality control
- Double junction designed specifically for contact with proteins or heavy metals
- BNC connector with superior insulators
- Cable has low noise design with conductive copper layer between braid and center conductor
- Less frequent and quicker calibration
- 10 Ft Cord
BRS Lab Grade pH Probe Features:
Double Junction Probe: A double junction probe has a second seal and junction found at the center of the probe. The double junction design adds to the cost and complexity of the probe but they are recommended in instances where the probe will come in contact with proteins or heavy metals. When these elements come in contact with the silver within the probe gel they can precipitate on the porous junction and clog it which can cause drift and shorten the life of probe.
The double junction design used in this probe has a second junction in the center of the probe which creates two chambers within the probe. The first one is filled with the reference gel containing mostly potassium chloride, silver chloride and reference probe. The second chamber has just reference gel containing mostly potassium chloride. This design prevents precipitation by keeping the silver away from the second porous junction at the bottom of the probe which is exposed to the aquarium water.
The BRS Lab Grade probe uses pelon strips as a junction material which is a true electrochemical insulator which allows a complete circuit between the reference probe and the tank but allows a very minimal transfer of elements found within the probe or tank. The pelon strip is also much easier to re-wet than the ceramic junctions in the case of accidental drying out of the probe.
The BNC connector is also made to higher quality specifications with superior insulators between the shell and center pin to reduce noise and increase accuracy. The outer shell on the BRS Lab Grade Probe is made using Ultem rather than less expensive polycarbonate which is what most probes use because it is the most inexpensive material available. The Ultem shell is a highly resistant material and inert to a wide range of materials making this one of the more chemically compatible options available for probes like this.
1x BRS Double Junction pH Probe
*Calibration solutions sold separately
short life By John on 2/19/2020John wouldn't recommend this product to a friendI get 2.5-3 years out of Neptune DJ probes; 11 months out of this BRS probe. Thought I'd save money with these, but turns out penny wise and pound foolish. Back to Neptune!
Great ph probe By Don on 9/22/2019Don would recommend this product to a friendI finished calibrating two of these probes for my quarantine tanks, wow, was this a pleasant experience! These calibrate much quicker than the Apex probes.
These are definitely going to be my standard ph probes.
Great Probe By Andrew on 9/15/2019Andrew would recommend this product to a friendVery easy to calibrate and i wish i replaced my probe earlier, i was way over due to replace the probe and my old Neptune probe was a fully point off after owning it for a few years. Decided to try out the BRS probe and it working perfectly.
2nd time was the charm By aquanut on 5/22/2018aquanut would recommend this product to a friendI ordered one of these to replace the one I had that was over 2 years old and not functioning properly anymore. The first one for what ever reason did not work correctly if at all reporting a pH reading of 8.29 no matter what I did (re-calibrating, inserting in straight R.O. water, etc.). Tyler sent out a new one for me and this one works fine (Thanks Tyler!). BRS is top notch, but even they can run into an issue with a product every once in a while, but totally stand behind their products and customers.
Good price good product. By Curt on 5/14/2018Curt would recommend this product to a friendWorks well so far!
mine not so nice By swany on 5/12/2018swany would recommend this product to a friendlasted 4 weeks and now reads 6.63 i cant get it to move even if i calibrate it but some how my first one from neptunes reads fine still when calibrated
great probe By Bryan on 4/2/2018Bryan would recommend this product to a friendEasy to calibrate. Long life.
great product By kenny on 3/5/2018kenny would recommend this product to a friendvery easy to calibrate and very accurate
Advanced Saltwater Reefer By Robert on 12/1/2017Robert would recommend this product to a friendThis probe is excellent quality and workmanship accuracy is as good as a PH probe can be based on water and atmosphere parameters.
Will this work with the Neptune system?
Will this work with a Reef Keeper Lite?
Is this compatible with the Neptune Apex system?
Have a great day!
What is the temperature range it can handle?
We use this probe in reef tanks that have temperatures between 72-82 degrees. Anything outside of that I cannot say whether it can work properly.
Will this be a suitable replacement for a Milwaukee MC122 PH Controller?
Will this probe work with a pinpoint monitor? and is it better than the pinpoint probe replacement? Thank you.
Our probe will work well with the Pinpoint pH monitor! Have a great day!