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> Requirements:<br> 1. A YoLink Hub, link https://www.amazon.com/dp/B07TQLKQLJ<br> 2. Smartphone or tablet able to run iOS 9 or higher or Android 4.4 or higher.<br><br> Specifications:<br> Product Name: YoLink Outdoor Alarm Controller<br> Product Model: YS7104-UC<br> Working Temperature: -20°C~50°C (-4°F~122°F)<br> Working Humidity: ≤95%RH (non-condensing)<br><br> Package Content:<br> Box1<br> 1 x Outdoor Alarm Controller<br> 1 x Mounting Hook<br> 1 x Quick Start Guide<br> Box2<br> 1 x Siren Horn<br>