Smart Home Alarm System Wireless 433MHz - App-Controlled Burglar Security Kit with Doorbell Mode, Adjustable Volume (0-15), Auto Arm/Disarm, Supports 4 Remotes & 50 Sensors

433MHz wireless security kit designed for smartphone-first control — nearly all functions are managed from the mobile app so you can arm, disarm and adjust settings from your phone. Use the unit's connection button to configure the main hub as a doorbell, cutting down on extra apps and centralizing alerts. The siren volume is user-adjustable across levels 0-15, allowing you to lower the sound for homes with children or set it to maximum when you’re away. A programmable arm/disarm timetable lets you schedule automatic arming and disarming to avoid repeating daily tasks or forgetting to operate the system. Expandability: the system can learn and pair up to 4 remote controls and up to 50 wireless detectors.