Multiple Operating Modes: Outdoor Alarm Siren: 24 hours sound and flash alarm. 24 hours flashing but silent alarm Sound and flash alarm at night Silent flash alarm at night Dangerous region Off Sensitive Solar Alarm Motion Detector & Loud Siren - Solar Strobe Light with Motion sensor with 2-12 meter detection distance, 120 detection angle, 120dB alarm and 8LED brightness, 1500m visible flashing light, outdoor motion alarm can be heard from 1800m away, Protect your farm from thieves breaking in. Rugged & Waterproof IP67 Motion Detector Alarm: Upgraded outdoor motion sensor alarm with IP65 waterproof, rugged ABS housing, suitable smart solar strobe light for any weather and outdoor environment, no false alarms. Wide use of outdoor motion sensor alarm: outdoor motion sensor alarm for houses, farms, barns, garages, yards, villas, hotels, factories, schools, orchards and anywhere that requires security alarm. Long life of noise maker motion sensor: one solar charge for 6-8 hours, keep working about 30 days. Remote Control Solar Security Horns and Sirens are easy to install with screws/bolts.