PH Probes

[GarrettT]

Using this probe to monitor my CaRx (alerting purposes). Anyone know if Neptune Apex's PH probe is any different than the ones listed below?

Amazon product ASIN B0009YJ22O
https://premiumaquatics.com/products/american-marine-pinpoint-lab-ph-probe.html
These are about 1/2 the price, so wanted to see if there was any difference. Curious to see what other peoples experiences were.

 

[blaxsun]

I've never used any non-Neptune Apex probe with my setup, but I guess for the price difference it's something worth a try.