The FireAngel SCB10-INT Smoke & Carbon monoxide detector is designed to simplify the protection of your home. It is easy to install and test and is strictly tested by independent bodies such as BSI Kitemark to ensure quality and durability. Technology FireAngel has dedicated itself to the development of technologies that provide the highest level of CO and fire detection for your home. With sealed, tamper-proof or battery- or powered options with back-up battery, you can be sure that your Fireangel device protects your property for years Easy testing To test your smoke detectors, you no longer need ladder - FireAngel offers you a large central test button Two deadly dangers The device has both smoke and carbon monoxide sensors to detect both dangers. It has clear indicators and warnings to see