Can't get a reading (Er2)

[Hooloovoo]

Just received my idip 570 Marine purchased at Reef A Palooza Orlando. I've gone through three of the Alk test strip so far, but the only reading I get is "Er2". I've gone through the instruction video and written instructions, but I can't find what I'm doing wrong. Any suggestions? Anyone know what "Er2" is supposed to indicate? I tried checking the FAQ in the iDip app, but it was blank.

 

[7hogwarts]

I had the same problem. I got a reply from Idip. Er2 means it became disconcted.

 

[7hogwarts]

Now I get the code ER1. No reply from Exact dip. It's been a couple weeks.
It doesn't appear they respond to emails through their site or here.
I did get a reading on alk. It showed my Dkh was 4.6 two times. Yet my tank is doing fine. Red Sea and Salifert both show Dkh at 7.9