YoLink LoRa Smart Vibration Sensor; Smart Shock, Glass Break, Tamper, Movement Detector, Generator Running, Email/SMS/Push Alerts, 1/4 Mile Open Air Range, Alexa, IFTTT, Hub is not Included

DEVICE-TO-DEVICE PAIRING allows for two or more devices, like your Vibration Sensor and a Siren Alarm, to be paired together, so they will operate when needed, without WiFi, internet, even without AC power (battery-powered or backed-up devices)! LONGEST RANGE, BY FAR! YoLink devices use a new wireless technology called LoRa. Boasting an open-air range of up to 1/4 mile, and superior obstruction penetration, you can put sensors in places, like basements, outbuildings, several floors away, not possible with WiFi or older wireless systems. REQUIREMENTS: Android or Apple smartphone, wired ethernet port or stable WiFi connection (2.4 GHz band, only)..Looking for a fob to arm/disarm your Vibration Sensor Search B0978V4WQC for the FlexFob or B092M1QQ5M for the AlarmFob or B0BRCX6HVK for the SirenFob (siren products, required, not included).Looking for a siren Search B0887SMPKK for the indoor Siren Alarm, or search B092QR82P1, B09V2DXPPW, B0BWYLT3JB, B0BZHPQ1PK for outdoor models. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.