Specification:Outdoor alert diatance:30mIndoor alert distance:60mDetecting method:two infrared beams are interrupted at the same timeInterruption time:50ms,100ms,300ms,700ms(optional)Beam frequency:4 channelWorking voltage:DC/AC 12-24VWorking current:90Ma maxAlarm Period:3s,1s(optional)Alarm output:relay output 1C;Contact capacity:AC/DC 30V 0.5A maxTamper switch:NC,opens when cover is removedIP Grade:IP55Working temperature:-25℃-- +55℃Environment humidity:95% maxAlignment Angle:Horizontal 180°(±90°),Vertical 90°(±10°)Mounting place:indoor/Outdoor,Wall /PoleWeigth:900g

Feature:-Beam interruption time adjustable-Form C ralay providing more applications-Tamper switch-Selectable beam frequency,suitable for long distance and stack use(Frequency adjustment type)-LED digital tube display received signal strength,easy to debug(Frequency adjustment type)-Wide voltage and energy saving design-Digital communication function-Digital filtering,environment adaptive function,minimum false alarm-The lowest beam interference,can used in all kinds of complicated environment. Package included:1 x Transmitter1 x Receiver1 x User manual1 x screws set