Motion Sensor Alarm, Wireless Driveway Alarm Outside Weather Resistant Motion Sensor Alarm Security Alert 656FT Range, Indoor Home Security Alert System (38 Tunes, 4 Volume Levels, Dual speakers) - 3T6B

• 【Wireless Driveway Alarm System】Entry alert chime for office / store, notify you in time when guests arrive, so you will never miss any visitors. 4 volume levels (including mute mode) can be selected, simple and harmonious doorbell sound will not be annoying, perfect for business customer welcome doorbell. 【Ring Indicator Light】The blue indicator light surrounds the black body, and the unique design makes it very easy to attract people's attention. The LED indicator flashes to perform a visual alarm to scare off unwanted intruders. When you wear earphones or for people with hearing impairment, this is a very suitable visual indicator. 【Remote Receiving Range】The long range wireless driveway alarm can detect 23 ft / 7 meters to 120 degrees The RF frequency is 433 MHz, so the communication range from the sensor to the receiver can be as high as 656 ft / 200 meters It allows you to place it far away from the receiver to warn your family, unwelcome guests or lawyers or anyone who visits your home or company. 【Easy to Install】No wired connection required, The portable wireless plug-in receiver can be adapted to any standard socket. The sensor uses 3 AAA batteries (Not Included). The sensor can be set up in a few minutes and is very simple to use. They are small size and can be installed or placed at any indoor position to provide you with a door entry security alert system. 【Extensive Application & Additional Security】When the doors and windows are opened / closed, the doorbell will notify you. When your children, old people, pets or leave / enter the room, there will be a doorbell to respond. When intruders break in at night, they will give an alarm in time. It also applies to front doors, window frames, driveways, walking paths, etc., Manufacturer: 3T6B