Dahszil Dual Laser Alarm Beam Sensor,300m Outdoor 60m Infrared Detector

Reliable & Safe: Yohii laser alarm with twin infrared beams provide reliable perimeter security, minimizing false alarms from falling leaves, birds, etc. Lensed optics reinforces beam strength & provides excellent immunity to false alarms due to rain, snow, mist, etc.
Principle: This is Alarm Two Beam photoelectric infrared detector ABT: 60m. Install them at the opposite positions. Then there is a infrared area between these two detector parts. When someone passes the infrared region for an adjusted response time, the detector will send alarm signal to the security alarm host (which not included here) work with 2pcs power apater
Powerful Function: Holographic spot real:time report. Unique displacing receiving, transmitting parts with big power. Full function checking, self:adaption in environment and trouble locking