We’re sorry that your shopping experience was marred by low battery levels. To ensure the most accurate battery level readings and the longest possible battery life, please make sure your Eve Door & Window devices' firmware is always up to date by enabling automatic updates in your platform app, e.g. Apple Home. Your Eve-Team

Thank you for your feedback. To prevent water from leaking into the battery compartment it is secured with a firmly holding latch. Pull on the two side tabs to release the latch and lift it upward to remove it. To close the compartment again, insert the latch into the slot, press the two tabs back into their guides, and press the latch downward until it audibly clicks into place. Best regards Eve Team

Hello Jasmin, we are very sorry that you have troubles with Eve Thermo. Please contact our support team via evehome.com/support to get assistance with calibrating your Eve Thermo. Best regards Eve team