When it comes to keeping your automated gate safe ALEKO infrared sensor is the way to go. Have peace of mind knowing your family and vehicle will be protected from the occasional mishap that can sometimes occur. One or two carefully placed sensors can keep your automatic gate opener from closing accidentally on a vehicle or more importantly on a person. Having a wired sensor is more reliable and you don t need to worry about changing batteries. The ALEKO infrared sensor can be powered with 12/24 dc or ac voltage which can be conveniently powered off any ALEKO low voltage automatic gate opener. With over a 40-foot range this sensor can be used on virtually any residential or commercial driveway. Compatible with all ALEKO gate openers (swing and slide) 12/24 DC or AC voltage Egg shape helps to deflect rain and snow Can also be used with garage doors alert systems alarms 40 Range