About This Dual Float Switch, High & Low Monitoring: Detect rising and falling water with two float switches, alerting you to flooding and dry-pump risk; monitor your sump pit and a second location like a cistern at the same time 90dB Siren and Flashing LED Alert: A loud 90dB alarm plus bright LED flash gives instant audio-visual warning the moment water crosses your set threshold, clearly heard and seen across basements and utility rooms Free App Alerts, No Subscription: Receive real-time push notifications on your phone via the free Smart Life app whenever water levels change, with alert history and easy sharing with family members Simple WiFi Setup, No Plumbing Needed: Connect to 2.4GHz WiFi through the Smart Life app in minutes, no electrician or tools required; the long float switch cable reaches deep sump pits, septic tanks, and crawlspaces Compact Design, Two-Year Warranty: Measures 7.2 x 7.2 x 3.9 inches for discreet placement in basements and pump rooms, backed by a two-year warranty and lifetime support Overview Color : Z2 Brand : MOKYDUO Compatible Devices : Smartphone Product Dimensions : 7.2"L x 7.2"W x 3.9"H Control Method : App