This consists of two units.
This is a duo of Active Infrared Detectors. They should be set up across from each other, creating an infrared zone between them. When an individual crosses this infrared space within a set response time, the detector transmits an alarm signal to the security alarm system (not included). The maximum installation distance shown in the chart above indicates how far apart the two detector units can be placed. There are fixed red and green LED indicator lights. This is ideal for security systems in locations like schools, office buildings, hospitals, and home yards. A manual written in English is included, which provides comprehensive guidance.
Number of Beams: 2 beams
Maximum Installation Distance for Outdoor: 100m / Indoor: 300m
Detection Method: Simultaneous blocking of 2 beams
Light Source: Infrared digital pulse beam
Response Time: 50 to 700 milliseconds
Relay Contact Output: Normally Open/Normally Closed
Contact Rating Output: AC/DC 30V 0. 5A Max
Operating Temperature: -25 °C to 55 °C
Operating Humidity: 5% to 95% RH (relative humidity).