Tuya WIFI Wireless SOS Emergency Button Alarm Alert Patient Help System for Home Personal Attention Pager Features: 1. One-click for help, prevent accidents. Push to mobile phone through home WIFI. Link with alarm or call for help. 2. The product can be used alone, and it can be connected to WiFi to realize remote push. Take care of the young and old at home anytime, anywhere. 3. Through the WIFI link with the WiFi alarm (to achieve the linkage between the second floor, the third floor and the fourth floor), as long as the two products are connected to the WiFi, the remote need for help can be known in time, and the alarm reminder can prevent things from delaying because of forgetting to check the mobile phone. Specifications: Operating temperature: -20-60℃ Emission frequency: 100dBm Quiescent current: 2 ~ 3uA Operating humidity: = 95% RH (non-condensing) Emission current: Peak value45mA.average1-2mA Package Included: 1* Selected item