NineLeaf Door Chimes when Door Opens, Wireless Motion Sensor Alarm, Motion Detector for Home/Business/Store Entrance Alert, 918 Feet, 36 Tunes, 5 Volume Levels (1 Receiver + 1 Sensor+ 1Remote)

<b>Parameters</b> <br><br><b>Battery Lifespan</b>:5-7 months (based on 30 times per day) <br><br><b>Working Frequency</b>:433.92MHz <br><br><b>Working Temperature</b>:10 degree below zero to 60 degree above zero <br><br><b>Operating Humidity</b>:below 80 percent <br><br><b>Storage Temperature</b>:20 degree below zero to 70 degree above zero <br><br><b>Batteries and Power</b> <br><br>1.3*AAA alkaline batteries for PIR transmitter, 3*AA for Receiver, please note the negative and positive. <br><br>2.Alkaline batteries are recommonded, other types will shorten standby time and lower the alarm volume, Micro USB is alternative for power supply;battery supply will be automatically cut off if AC power, and can be standby power supply if power off. <br><br>3.You will hear short "DU" and see LED colorful lights flashing after loading the batteries for receiver, load the batteries, turn on the transmitter, the blue LED indicator will be on for 5 seconds. <br><br><b>Low Batteries Indication</b> <br><br>1.Infrared curtain LED flashes once every 3 seconds <br><br>2.Receiver?if you hear the low battery indication sounds when it is in application, please replace the battery in time, or all functions cannot be realized. <br><br>3.LED indicator gets darker or wireless range get shorter

• NineLeaf doorbell offers five modes: Welcome, Doorbell, Alarm, Color Light, and Lighting. It detects movement in the surrounding areas and triggers alerts to the paired receiver, ensuring security and safety for your property and loved ones.
• 5 Languages/36 Ringtones/4 Brightness and Color/4-Level Volume Adjustable: Choose from 5 welcome languages in welcome mode and 36 ringtones in doorbell mode. The welcome/doorbell/alarm modes feature 4 adjustable volume levels (Loud/High/Middle/Low) ranging from 113 to 25 dB. The color light/lighting mode is silent and has 4 adjustable brightness levels, ideal for people with hearing impairments or when there is a sleeping baby in the house. The color light mode also offers 4 selectable colors.
• Strong Transmission Range: With a transmission range of up to 280m (918ft) and a detection range of approximately 2-8m (6.6-26ft), you'll stay effectively alerted. Place the receiver indoors and position the sensor at various locations such as door entrances, mailboxes, driveways, walking paths, apartments, offices, hotels, stores, and many other indoor spaces.
• DIY Pairing Flexibility: Customize your setup with DIY pairing, allowing you to select the number of transmitters and receivers according to your needs. Each receiver can pair with up to 32 infrared, vibration, magnetic, and other wireless sensor accessories, as well as 8 remote controllers.
• Easy to Install: The receiver features self-adhesive installation, while the detector is wall-mounted. Power the device using batteries or a micro USB supply. Before use, read the manual carefully, insert the batteries (not included), and adjust the sensor's angle to avoid false alarms.