Securityman Air-AlarmIIE Smart Alarm Kit and Two SM-87l Door/Window Sensors: * Securityman Air-AlarmIIE smart alarm kit and two SM-87l door/window sensors * Securityman Air-AlarmIIE DIY wireless smart home alarm system economy kit * Easy-to-use and cost effective do-it-yourself wireless intruder alarm system kit * Supports up to 60 wireless sensors * Supports up to 5 phone numbers for auto alarm call * Armed/disarmed by remote controller, phone call or host keypad * Internal rechargeable backup battery in alarm host lasts up to 16 hours * Smart 3 defense lines configuration (perimeter/in-room/24 hour) * Telephone line (landline) disconnection alarm sounds every 5 seconds * Transmit at 430MHz-433MHz frequency band * Wireless transmitting distance up to 300" (remote controller and siren) * Programmable silent alarm or audible alarm * Smart alert and zone notification when attempting to arm the host with an open door * Host chirps if door/window sensor is open/closed in disarm mode * Self-monitoring alarm system without monthly fee * Package includes 1 control panel, 1 PIR motion sensor, 1 door/window sensor, 2 remote controllers * 2 Securityman SM-87l add-on wireless smart door/window sensors for Air-AlarmIIE * Wireless transmitting distance up to 450" * 23A 12V alkaline battery lasts up to 2 years * 4 cm alarm distance * Host LED light flashes when door is open * Host chirps when door is open and closed