How to insert and remove the batteries of a Check'In Infra? 08 October 2024 11:56 Updated Inserting the batteries into the Check'In Infra Removing the batteries from the Check'In Infra Related articles How do I change the Check'In batteries? How to install a Check'In Infra (via the Check'In Pro app)? How do I change the Check'In Pro 2's batteries? How to open and close a Check'In Infra box? How can I identify the model of my Check'In (Check'In, Check'In 2, Check'In Pro 2, etc.)?