No, but the batteries last a long time, easily 6 months I would say. Otherwise you have to remove a battery.

Hello I am no longer sure if batteries were included. (I think not) The number of batteries is in the description: 3x AAA / LR03 batteries (for the main unit) and 6x AAA / LR03 batteries (for the remote sensors) are required.

Yes, the minimum and maximum values since the last reset can be displayed for the four measuring points. However, they are not provided with a time. Alarms can also be set for temperature and humidity. I haven't tested this yet because I don't need it. I hope I have served you with this information. Have fun with the device and best regards.

So it is

Hello. I have the furthest sensor 2 floors down in the basement (through two concrete ceilings). The transmission works fine for me. However, this may be different in a building with thicker concrete floors. Other sensors that use the same transmission frequency should also be taken into account. I hope to have served you with this information. Best regards Bernard

2x AAA