Three observations:
- Leaflet in English is very explicit but I regret the lack of a notorious leaflet in French - I have made a to my tenants (this is a rental, I must provide a mode Use readable in French)
- A (small) bug: when one switches from ON mode to AUTO mode, the clock remains "on", if one switches from OFF mode to the AUTO mode, the clock remains "off" .... and that regardless of programming expected in AUTO mode (FYI, the rocker is in a sequence, or, AUTO mode or OFF mode OFF, AUTO, ON fashion - is cyclic). In this case, I had to switch from the OFF mode to the AUTO mode for the clock "off" and do as well as programming period is well remained "off". If I had switched from ON mode to AUTO mode, the clock would remain "on" when the programmed time has not yet started - I imagine it would be then corrected during the programming trigger. Just know.
- The transparent cover that protects the keys (to the program) is not easy to remove when the clock is set on its rail in the electrical cabinet. The joint that allows to unclip the cover is flush with the electrical housing cover. I removed it to allow my tenant easier access to programming keys.
This clock is easy to use, without danger (if using 2 breakers 2A / 16A during installation) and does the job. No noise heard / seen in my testing phase in triggering the programmed range. ... A very good price / quality ratio.
I recommend great buy!