Fixture mount sensors provide passive infrared occupancy detection that overlap the areas lit by a luminaire. Fixture mount sensors are designed to mount directly to the end of a light fixture through an extended ½ inch chase nipple. Lens options include large motion extended range, small motion standard range, bi-directional for hallways and high bay. Low voltage sensors are used in conjunction with power packs, which contain a relay, and are ideal when multiple sensors are needed. Options including PDT (Passive Dual Technology), integrated photocell, dimming control, and low temp/humidity are also available.