This page contains hacking and usage information about the
SAIC Exploranium GR-135 Plus "Identifier"
a "Sensitive, accurate survey meter and nuclide identifier for rugged field applications"
The information here has been derived by using, hacking, or adapting second-hand GR-135 units.
- Adapting a new LCD for GR-135
- Many GR-135's from the mid-2000's seem to have LCD displays that are failing with many
dead pixel columns. Finding the same LCD module to fix them seems very difficult. This
page describes fixing one with an LCD that is a little smaller, but available.