It is used directly after receiving, put in battery and adjust angle to avoid false alarm, not suitable for outdoor because of lack of waterproof function. ♫ Brief Introduction Led indicator light.
eBay
✔️【Upgraded Motion Detector, 3 Gears Adjustable Sensitivity】 open the back cover of the motion detector, Install 4 AA batteries and turn main power switch on, cover it and connect the detector and rorateable base, install in any place you needs to use.
eBay
(3x AAA 1.5V batteries required (not included), or power using USB power adapter（ DC5V）（not included).
eBay
The motion detector power by 1 9V batteries (not included). Loud: 110 Db alarm. 2pcs x Alarm Sensor. When the alarm is triggered,it will sound for 20 seconds. Other accessories demo in the picture is not included.
eBay
1) 17-chord music chip and 40mm loud speaker for pleasant and louder alerts Remote transmission range up to 280m/ 918ft in open space. 2) 4 independent LEDs to distinguish sensing zones, with the option to synchronize sound alerts 3) 5 stages adjustable volume from 113 ~ 25dB. 4) Infrared + microwave radar composite dual detection for lower false alarm rates 5)Added silent and vibration reminder.More privacy,no disturbance ,vibration reminder for discreet alerts 6)Expandable.The receiver can learn from up to 32 wireless sensors like PIR motion, magnetic or vibration sensor as well as up to 8 remote controllers. 7) Low battery indication. Both the sensor and receiver can be powered by battery or plugged into a USB interface. 8) IP66 Waterproof ideal for outdoor use.
eBay
Wireless Welcome Doorbell ●Shop Keeper in day time,anti-thief in the night,welcome/doorbell/alarm/color lights/lighting 5in1 multi-function ●Remote transmission range up to 280M/918ft in the open space ●8 chord music chip,40mm big horn,36 chime melodies,remember your last set melody and volume level once powered off ●Colorful LED lights,adjustable brightness,distinguish multiple entrances by different colors ●4 stages adjustable volume(Loud/High/Middle/Low)from 113-25dB ●Receiver can learn from up to 32 wireless sensors like PIR motion,magnetic or vibration sensor as well as up to 8 remote controllers. Door Window Anti-theft Alarm Using electromagnetic induction technology, easy to install. The open state, as long as the open windows and doors, the machine will send out 110db alarm.
eBay
Item Type: Entrance Doorbell. 1 x Entrance Doorbell. Detection Angle: Arc 120° (Ceiling Type). Induction Distance: ≤3cm. Support built‑in FLASH playback, more convenient. There are two modes of A, B.
eBay
Wireless Motion Sensor: Remote transmission, 280 meters in the open place, suitable for more places 5 Model Options: Welcome mode/ doorbell mode/ alarm mode/ color light mode/ night light mode, sufficiently meet your demand, Widely Application: Not only perfect for home security, but also for shops, hotels, offices and factories. Home Security Alarm: Independent alarm horn,maximum 113dB, can effectively scare the thieves and intruders away, Power Supply: The Receiver uses AA battery(not included) or USB 2.0 micro-B(not included), motion sensor uses AAA battery(not included) or USB 2.0 micro-B(not included) Package: ( battery not included) 2x Infrared Curtain (PIR Motion Sensor) 1x Alarm Bell (Receiver) 1x Desktop Base 2x Suspension Bracket Double-Sided Adhesive Tapes 1x User Manual.
eBay