Product Description 433mhz Wireless Rolling Shutter Door Sensor Garage Gates Magnetic Detector Switch For Home security Alarm SystemSpecifications:Main material: Alloy plating shell /stainless steel pipe thread /Reed switchPower Requirements: 1*23A 12V battery (Included)Working current: ≤ 10mAQuiescent Current: ≤ 3uATransmit Freqency: 433MHzWireless transmission distance: ≥ 50MTransmitter size: 7x3.5x1.5cmFeatures:Low power design.Ultra small exterior design.Installation is simple and convenient.Cast iron casing, durable and durable.Mainly used for roller shutter/rolling door; also applied to other doors and windows.Installation:Stick part metallic magnet on the edge of the roller shutter/rolling door, and stick part metallic sensor on the fixed frame of roller shutter/rolling doorNote: The distance of these two parts shall be less than 3-5 cm when the roller shutter/rolling door is closed.Usage:Pull out the antenna of the transmitter.When the roller shutter/rolling door is opened from the closed position, LED will turn on red light for 5 seconds; the sensor will be triggered and will send alarming signal to the main unit.Package Content:1X Wireless Rolling Door Sensor(included 1* 12V 23A battery)Note:This rolling door sensor can not work alone. It works with most alarm system in the market. Check if your alarm system support 433mhz If you have any doubts or uncertainty about this item, contact us with no hesitation, we are always here and will solve your problems. Thanks and wish you a nice day!About Us We dedicated to provide excellent products and services for all customers on ebay. hope we all can have a nice experiences on eBay.Payment We accept all verified payment through PAYPAL payment.ShippingIf you have any questions about shipping, you can contact us. all shipping fees are clearly stated.Returns Always believe we can solve problems by communication if it comes to any problems about products or any others. If it comes to a return, the products must be intact and as original when you received, and should be within 30 days after you received it.Contact Us Work time: 9:00 AM to 18:00 PM Beijing Time You can contact us at anytime you want, we will reply all messages at the first time. powered by