In the comments section of a Brulosophy article, I noticed the author and a couple of his compadres recommend using the Thermoworks 8689 pH meter, which is on sale right now at $69 US. Can anyone here on HBT speak to how well this product performs? At $69, and with a free replacement electrode, it seems like a heck of a deal to me.
http://www.thermoworks.com/High-Accuracy-pH-Meter-8689
http://www.thermoworks.com/High-Accuracy-pH-Meter-8689