The Ajax DoorProtect Plus is a versatile opening detector designed for indoor security, combining a reed switch and an accelerometer to monitor not only the opening of doors and windows but also shocks and tilts. This white device integrates seamlessly with all Ajax hubs and range extenders using the proprietary Jeweller wireless technology, which allows for a communication range of up to 1,200 meters in open spaces. It reacts quickly, delivering an alarm signal in just 0.15 seconds when a breach is detected or when the sensor tilts more than 5 degrees. Measuring 20 by 90 mm and weighing only 29 g, the detector is discreet and easy to install using the included mounting plate and kit. It features an integrated temperature sensor that operates between -10°C and +40°C, while the IP50 protection grade ensures reliable performance in humidity up to 75%. The system is powered by a single CR123A battery, providing a long service life of up to 5 years, and is built for durability with a resource of 2,000,000 openings. To ensure secure data transmission, the device uses block encryption with a dynamic key across various regional radio frequency bands.