yolink smart home starter kit: security & leak detection kit (hub, door sensor, water leak sensor, plug mini compatible with alexa, lora-powered 1/4 mile range yolink yolink technology<br> “yolink” is a proprietary wireless technology provided by yosmart. which is based on the semtech's lora wireless technology combined the yosmart smart home/buiding protocol, to provide most advanced smart home/buidling devices solution. compared to wifi, bluetooth, zigbee, z-wave and other smart home protocol, it has the advantages of low-power consumption, long-distance coverage (wall penetration), and anti-interference. it is first smart building/home protocol which can be very easily setup and is very low cost, but create a reliable, robust and more secure iot network. <br><br>product requirements:<br>a smartphone or tablet able to run ios 9 or higher; android 4.4 or higher.<br><br> with yolink app and yolink hub, you can also control or monitor other yolink smart home device, like garage door kit, plugs, buttons, smart lock, remote controls, switches, outlets, power strip, gas/water valves, sensors and more. you can set scenes, automation and yolink control between devices and devices, to build your own smart home system making your house smart.<br><br> specifications:<br> yolink hub<br> input: 5v dc<br> maximum current: 1a<br> working temperature: -20°c~50°c (-4°f~104°f) <br> working humidity: 0~90% (non-condensing) <br> <br> yolink door sensor<br> voltage: 3v dc (2* aaa battery)<br> trigger distance: 18-25mm<br> working temperature: 0°c~40°c (32°f~104°f) <br> working humidity: 10%~90% (non-condensing) <br> <br> yolink water leak sensor<br> voltage: 3v dc (2 - aaa battery)<br> working temperature: 0°c~50°c (32°f~122°f) <br> working humidity: ≤100%rh (non-condensing)<br> <br> yolink smart plug mini<br> input: 100-120v ac, 60hz<br> output: 100-120v ac, 10a max (resistive)<br> working temperature: -20°c ~ 45°c <br> working humidity: ≤80%<br> dimension: 69.9 * 39.8 * 31.4 (mm)<br> <br> package content: <br> 1 x yolink hub<br> 1 x yolink door sensor<br> 1 x yolink water leak sensor<br> 1 x yolink smart plug mini