Simple and effective home security alarm. Connect the unit to your land telephone line, program the 5 emergency numbers and this unit will provide security coverage over a 110° field and up to range of 8 meters. As soon as the motion sensor detects unauthorized entry into the field, the optional siren can ring or stay silent and then will start dialing to advise your contacts with a beeping noise. A fixed land line is required to set up this unit, but it will make calls to mobile or land lines and pagers. The motion sensor cannot be detached from the dialer portion and no additional motion sensors can be added. Wired door and window contacts can be added with Ideals SK619. Pressing the panic button on the unit will immediately start the dialing process. Create your own password to activate and deactivate the unit. Load 105 db built in alarm. This unit is not compatible with wireless accessories. Batteries, AC adapter, all connectors and instructions are included.