KERUI New Android IOS APP 433Mhz Sensor Dual-network GSM PSTN Sim Call LCD Smart Dislay+Touch Keypad Home Security Voice Burglar Main Panel TFT color display, humanized menu, voice prompt and easy to use. Up to 99 wireless zones, each zone can setup the siren independently; 4 sets of scheduled arm/disarmed function, each timed arm/disarm you can select the period of time and different defense zone 6 groups preset telephone number for alert calling; not lost number without power Support ISD automatic voice mailbox for playback message upon alert. Maximum length of voice message is 10 seconds. Wireless intelligent study coding, compatible with PT2262 normal encoding, and 1527 encoding, Maximum support 150 remote control and 150 sensors. NOTICE: It has been insulated when bale the item. After receive the item, need remove insulation paper by the side of the battery before use.