Fangrui Product Details Sound Light Detector Sensor Tuya Universal Smart Human Body Sensors Wifi App Remote Alarm Home Security Sensor Alarm Smart Life Description: Multiple Sound Selection Powersupply Miniusb5v1a Backup Powersupplyminiusb5v1a Sound Intensity100db Detection Temperature-10c~80 Detection Humidity~ Wireless Type2.4ghz Protocolieee802.11b/g/n Wireless Range45m Operating Temperature0~40(32f~104f) Operating Humidity~ Size68x68x33mm Specifications: High-decibel Sound And Light Alarm, Greater Than 85db Mobile App Remote Alarm Reminder Anti-dismantling Design In Dedicated Security Field With Low Voltage Monitoring Prompt Function Wireless Transmission Signal, Easy To Install Regularly Send Online Reports To The Gateway When The Detector Is Triggered, It Will Immediately Send Out An Audible And Visual Alarm To Deter Intruders. Users Can Also Use App To Realize Out-of-home Alert, Home Alert, Cancel Alert, Alarm And Other Operations To Achieve Control Of The Wireless Sound And Light Alarm. When The Siren Is Used, It Needs To Be Used In Conjunction With The Gateway, Through The App Parameter Setting To Realize The Control Of The Wireless Sound And Light Alarm. The Communication Of The Whole System Adopts Wireless Transmission Mode, Which Makes The Installation Of The Product Convenient And Quick. Package Included: 1*alarm 1*user Manual