I want to secure a house. How many Check'In Pro 2 should I buy? 05 November 2024 15:57 Updated If you want to secure a house, you can install multiple Check'In Pro 2 devices that you can control from your application. Related articles Can I remove the Check'In Pro 2 device from the door/window to put it in another home? How long is the siren? What is the Check'In Pro 2 alarm? How to install my Check'In 2?