Review on 🔋 Apera Instruments AI312 2-00-16-00 Replaceable by Zachary Spaulding

Price. Seemed good at first but failed to calibrate following instructions. This tester simply will not calibrate the bottom if the instructions are followed. I've tried several times and faced the same problem each time. There is no problem with the midpoint calibration, but when I try the bottom, the meter shows error 1. The leaflet that came with it didn't help because it said the solution was out of range (which obviously isn't the case). t) or There is an air bubble on the dipstick (also no problem). Tried soaking the probe in storage solution overnight but that still didn't help. I even tried replacing the gauge and encountered the same issue. If accuracy is important to you, look elsewhere.