Infraredalarmsystemcanbeusedtodetectthemovementtoagainsttheintruderintheroomorhouse，whenthesystemtriggered，Itwillsoundin105dbandthealarmsoundlastfor30second，Thisalarmsystemusingadualinfraredsensorswithspecialinfraredintegratedcircuit，havethelowfalsealarmrate，highreliability，highcostperformancecharacteristics，suitableforhome，office，garden，andstreetstoresandotherplaceswithanti-theftorintruder.Installationrequirements:1.Becauseofthehighestsensitivityofthelensinthebodylateralmovement，andtheverticalmotionsensitivitypoor，sointheinstallation，youshouldpayattentiontotheanglebetweenthehorizontalandheightdetectors，whichhavegreatimpactontheprotectedarea.2.Whenyouinstallation，avoidedneartheheatsource，suchashotandcoldairoutlet，airvent，heater，aircooler，etc.，toavoidthestraightonthedoorsandwindows.3.thescopeofprotectionshouldbeabletolookdirectly，cannothaveobstacles.4.Thealarmintothewallshouldbe10to30degreeanglewiththelongestdetectiondistance，Somakingadjusttheangleasyouractualinstallation.Installation:1.Thisalarmshouldbefixedinthewallof2-2.5m2.Put4pcsAAAbattery3.Turnthealarm，andmakeadjustoftheangelTechnicalparameters:1.Power:DC6V(4pcsAAbattery)2.Alarmsoundloudness:within1meterofnotlessthan105dB3.Infrareddetectionrange:7meters，about110degrees4.100%brandnewandhighqualityPackageincludes:1xAlarmsensor2xRemotecontrols1xMountbracket