iGaging DRO problems

[davidyat]

Just wondering if others have this problem with iGaging products. In the photo I attached, the bottom DRO was purchased about 10 or 12 years ago. It's a 24 inch for my X axis on my Bridgeport Mill. Rarely any problems. The upper one was purchased in the last couple of years. That one is a 12 inch model installed on my Y axis. That one gives me fits. I can zero out the upper one, move the table to the proper distance and work on a piece. I can set that upper one to say, 0.337 inches. I do a procedure and when I look back at the screen, 0.337 has changed to 13.537 or some bizzare number. Today, I found a 12 inch iGaging that looks like the lower model. I don't think I'm the only one with this problem?