Fix pinpoint salinity monitor?

[born]

I went to go do tank maintenance and my pinpoint salinity monitor was turned ON but it wasn't displaying any digits. The circuit board didnt have any water on it, the only thing I can think that could have caused this was that I had it stuck to double sided velcro and it fell off of that, but was only a foot drop.

anyone have any problems with their monitors or similar problems that know how to fix it?