Technical parameters:

1: size: L * W * H 12mm * 10.2mm * 11mm

2: Power: AC 110V ~220V,the length of the power cable is about 92cm/3ft,can be extended by yourself.

3: the wireless operating frequency: 433MHz

4: the use of the environment stability: -15 ~55,relative humidity: 40% -70%

• The normal workable distance from the sensors to the horn (host) is about 328 feet (100 meters)in open area,barriers will lessen this distance.And if you are closer to siren/control unit,it loud up to 115db,the longer the distance,the decibel will be reduced,hope you can understand.
• The burglar alarm system comes with fully programmed,do not have to program anything,after you get it,open each sensor(excluded remote control ) and pull out the little paper tab near the battery so it then powers up the unit,install the PIR sensor and door/windor sensor in somewhere need to protect,the siren horn is powered by a 110 V to 220 V AC adapter,plug it in outlet,will hear beep,then use the remote key fob to arm or disarm the system along with the alarm horn will beep to remind you it in working(arm/disarm) status;in arm status,when doors open even a little or motion sensor detect objects, horn screams up to 115db scare off intruders and alert you or your neighborhood of a possible break in.
• Note:
• 1,If there are false alarms,please restore to factory setting first,then follow the operation guide to re-setup them by yourself;or you can change new batteries of sensors.
• 2,The loud siren host alarm without flashing,also the alarm time and volume can’t be adjusted,when the sensor is triggered,the siren will alarm at once,if no one disarms the siren,it will keep alarming about 2 minutes and stop automatically,then it’s will be in disarm status till you arm it.
• 3,If you want a more louder alarm system,you can add more and more black horns work with same set wireless sensors, you also can choose another type live sound host or smart app control host of KERUI brand together work with same sensors.