With Microwave Doppler technology, multi-frequency signals indicate motion. Dual-Frequency InfraRed** technology(DFIR**) brings multi-frequency function to IR motion sensing. Together,they are M-TEC**–Mutual multi-frequency sensing. Only actual motion produces multi-frequency signals-other stimuli do not.Good-bye, false alarms!
-Multiple white light immunity features
-Split-View** DFIR** opto-electronic system
-Anti-Sway DFIR?** rejects wind-blown objects
-SummerSense**Warm-weather DSP detects at near-human background temperatures
-Selectable processing sensitivity for different environmental requirements
-Look-down detection directly below the sensor to catch wall-creeping intruders
-Robust planar-antenna microwave transceiver delivers strong intruder detection signals.