2X 20M beam Infrared Detector Motion Sensor Home Security System outdoor/indoor

URBEST Single Beam Egg Shaped Photoelectric Infrared Detector Active IR Sensor Alarm Photo Eye for Security System a

Pair
Item Name : Active Infrared Detector;
Type : Single Beam;
Install Distance(Max.) :20m
Infra-red Frequency : 1.92Khz;
Power Supply : DC/AC 12 to 24V;
Wave Length : 940nm
Input : RX 15mA~TX 30mA;
Operating Temperature : -20°C to 70°C;
Relay Output : 1A 30V max.
Size (Each One) : 7.5 x 4.8 x 3cm/3'' x 1.9'' x 1.2'' (L*W*T);
Package Content : 1 Pair x Active Infrared Detector,1 x English Usage Manual,1 Bag x Install Tools
It is Active Infrared Detector. Install each pair at the opposite positions. Then there is a infrared area between these two detector parts. When someone passes the infrared region, the detector will send alarm signal to the security alarm host (which not included here).
Install Distance(Max.)in the above chart means the maximum installation distance between the two detector parts.
The Active Infrared Detector is suitable for security system in school, office building, hospital, home yard, etc.
Detecting range can be reduced to 30% in bad weather conditions, like rain, dust, etc.
English Usage Manual included in the pack. It will give you detailed instructions.