Dualtec, twintec etc movement detectors
Dual Technology
Optex
Optex DT 15m x15m active IR digital anti-masking, grade 3
Optex

Optex FLX-S-DT-X8 FlipX Series, PIR
Optex

Optex FMX-DT-X8 Dual Tech Indoor PIR Motion Detector
Optex

Optex PIR Microwave Combination High Mount Outdoor Detector 12M
Pyronix

Pyronix 15m Dual Tec Anti Mask EN Grade 3
Pyronix

Pyronix Enforcer KX12DT Wireless Dualtech PIR
Risco

Risco iWise Dual Tec 15m (Rokonet)
Risco

Risco iWise Dual Tech Pet Immune 11m
Scantronic

Scantronic PET Tolerant Dual Tech Radio Detector
Siemens/Vanderbilt

Siemens MAGIC Dual Detector, 12m wide angle
Siemens/Vanderbilt

Siemens MAGIC Dual Detector, 18m wide angle
Texecom

Texecom A20 : 20m Anti-Masking Dual Tech