corndogg
New member
It's about 2 years old. I swapped out the probe with an older one from my neptune controller and it calibrated fine. Couldn't hurt to replace it in the next 6 months or so. Great deal for someone looking for a cheap way to monitor your tank's or calcium reactor's pH. Runs on a 9 volt battery.
Only $35 local pickup only for now.
Only $35 local pickup only for now.