Smart Connectivity Tuya APP Control – Receive real-time smoke alerts on your smartphone Remote Monitoring – Check smoke status anytime, anywhere SMS Notifications – Get alarm messages even without APP open WiFi 2.4GHz – 802.11 b/g/n compatible, easy network connection Powerful Alarm 80dB Loud Siren – Clear audible alert at 1 meter distance Instant Notification – APP push alerts when smoke detected Test Function – Long press …