433MHz Door Magnetic Contact Wireless Sensor Detector Switch for Home Garage Alarm Security Description:<br style="white-space:normal;" /> This set of magnetic detecting switch monitors the opening and closure of doors and windows used to protect doors and windows for the&nbsp;most part. It is great for installed on doors of house, garage, warehouse, enterprise and shop etc.&nbsp;<br style="white-space:normal;" /> <br style="white-space:normal;" /> Features:<br style="white-space:normal;" /> This is a set of magnetic detecting switch used to protect doors and windows for the most part.&nbsp; Protective device monitors the opening and closure of doors and windows. 433MHz transmitting frequency, wireless connection. magnetic sensor contacts with strong magnetic, sensitive respond and long durability. Built-in switch for different code, suitable for most of GSM or smart home security devices. Easy to install and use with adhesive. A good replacement for the old contacts.&nbsp; &nbsp;It is great for installed on doors of house, garage, warehouse, enterprise and shop etc. <br style="white-space:normal;" /> Specifications:<br style="white-space:normal;" /> Condition: <br style="white-space:normal;" /> Material: ABS Plastic&nbsp;<br style="white-space:normal;" /> Color: As Picture Shown<br style="white-space:normal;" /> Operating Voltage: 1.5V Transmitting Frequency: 433MHz Battery: 1 * AAA Battery(Not included)<br style="white-space:normal;" /> Battery Life: About 2~3 Year If it is opening and closing 5 times per day<br style="white-space:normal;" /> Transmitting Distance for Many Main Unit: 100~200m/328.1~656.2ft(open area distance)<br style="white-space:normal;" /> Size: Approx.&nbsp;7.3*2.5*1.5cm/2.87*0.98*0.59in,&nbsp;3.8*1.1*1.1cm/1.5*0.43*0.43in Weight: Approx. 30g <br style="white-space:normal;" /> Package Included:<br style="white-space:normal;" /> 1 * Set of Wireless Door Magnetic Detecting Contact with Adhesive<br style="white-space:normal;" /> <br style="white-space:normal;" /> Note:<br style="white-space:normal;" /> 1.Can not used alone. Should work with the alarm system main unit for alarming. 2.The indicator light will flash once in every 3 seconds while it is in low battery status