Alarm System,Solar Alarm System,Fully Weather proof Outdoor Motion Sensor & Detector Security Alert System,1 Receiver And 1 Sensors Feature: Solar Wireless Alarms: The outdoor weather solar motion sensor is powered by built-in rechargeable battery, and the battery will be charged by the top mounted built-in solar panel even on rainy or cloudy days.Solar powered no need replace batteries Long Wireless Transmission Range: Both the solar motion sensor and plug-in receiver pick up alarm signals up to 16 meters away(actual range will vary depending on the local terrain), it is a great solution even you have a large perimeter or property to monitor Wide Motion Detection Range: The solar sensor can detect moving people or vehicles from 5 meter to 16 meter in front of it. Improved motion detection chip and detection angle to reduce the false alarms from dead leaves/small animals/sunlight/wind/temperature changes and etc. It has 3 Adjust sensitivities( Low=5-8 meter; Medium=8-12 meter; High=13-16 meter), ideal for driveways, walking paths,yard,garage,gate,pool and anywhere of your property you want to be alerted Plug&Play,Super Easy To Install: Turn on the solar sensor and plug the receiver into an outlet,here we go. The unit has been programmed before shipped, the solar motion sensor does not need replace batteries and wireless communication between the devices, the installation time can be as little as a few minutes Adjust:4 volume level adjustment and 38 optional melodies. Match different melody with different sensor around your property to differentiate where motion is being detected Product parameters: Product Name: Wireless Doorbell Color:black Wireless transmission distance: 200-300 meters Low sensitivity: 5-8 meters Detection distance: medium sensitivity: 8-12 meters High sensitivity: 13-16 meters Working frequency band: 433MHz FSK Detection angle: 120 Battery type: 3.7V/500mAh Working voltage: 3.0V-4.2V Working environment -30~60 Solar panel specification: single crystal silicon 5.5V 100mA Receiver working voltage: 110-240V Charging voltage of transmitter: 5V Music: 38 Volume: Four level volume adjustment (high, medium, low, mute) Prompt can be set to sound and silent: sound: sound+indicator light Silent: indicator light When the transmitter is fully charged, it can transmit signals more than 9000 times and has a standby time of more than 4 months When the transmitter is in a dead state: USB charging, solar charging Packaging size:16.2x10.4x9.2cm/ 6.38x4.09x3.62 inch Gross weight: 340g/0.75 lb The Package Include:1 x Transmitter 1 x Receiver 1 x Instruction manual