Blackt ElectrotechBT31C PIR Motion Sensor Ceiling Mounted White Round Shape

Blackt Electrotech BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular)

Blackt Electrotech : BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted (1)

Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2)