","image":["https://m.media-amazon.com/images/I/41jqgXdn5nS.jpg","https://m.media-amazon.com/images/I/81HygA93RiL.jpg","https://m.media-amazon.com/images/I/817RCiyd19L.jpg"],"offers":{"@type":"Offer","priceCurrency":"EUR","price":"23.28","itemCondition":"https://schema.org/NewCondition","availability":"https://schema.org/InStock","shippingDetails":{"deliveryTime":{"@type":"ShippingDeliveryTime","minValue":4,"maxValue":4,"unitCode":"d"}}},"category":" securityandsurveillance","review":[],"aggregateRating":{"@type":"AggregateRating","ratingValue":3.6,"bestRating":5,"ratingCount":1}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What kind of batteries does this device use?","acceptedAnswer":{"@type":"Answer","text":"Hi, the Control Center (receiver) comes with an ac adapter but uses 4 x 1.5V AAA batteries for loss of power back-up. The transmitters (sensors) use 3.2 V lithium coin cells (1 for each) CR2032. Transmitters batteries are expected to last up to 2 years. If the sensor battery is weak or signal is lost, the Control Centre light will start flashing as a warning. Hope this helps."}},{"@type":"Question","name":"Does the window sensor have an on/off switch? My teen has been sneaking out at night, I just want to make sure she cannot disable the sensor.","acceptedAnswer":{"@type":"Answer","text":"Your teen could take off the sensors from their window or door but they'd need to hold the sensors together so they're not separated and then the alarm wouldn't go off. You cannot install these invisibly on doors. They'll see it's there and may easily figure out how to take it off without setting off the alarm."}},{"@type":"Question","name":"Do you need one Repeater per signal devise or one repeater per zone?","acceptedAnswer":{"@type":"Answer","text":"You need one repeater in between any number of signal devices and your control center, not one per device or one per zone on the control center. For example, I placed the control center upstairs and found that two of the door/window sensors and the motion sensor downstairs did not always communicate with it successfully. We bought one signal repeater and plugged it in near the problem devices, and now they all communicate with the control center without any problems. Note that the door/window sensors and the motion sensor were assigned to different zones."}},{"@type":"Question","name":"Does this product make a loud beep when you push the buttons? Or can you push the buttons and disarm without the loud beep of pushing the buttons?","acceptedAnswer":{"@type":"Answer","text":"You can push the buttons without the loud beep. You will hear a one time loud beep at the base when disarming. When arming away you will hear some loud beeps to allow you to open an close a door."}}]}]}