- An architect, my wife and I first tried in vain to open the battery compartment. The manual described it too bad. It took real effort expended to push the cover at the back.
- The eyelet for the wrist strap is too scarce and difficult threading.
- The pocket is too tight. Slightly larger would be better.
Plus points:
+ Very precise, as can be easily assessed with multiple measurements.
+ Good menu for computing processes.
+ Easy to read with on and switched off lights.
Despite the initial cliffs the device is fun, the ruler not entirely unnecessary, but provides significant time savings.
