eufy Motion Sensor E20, Pet-Friendly Detection to Prevent False Alarms, Extended 5-Year Battery Life, Easy and Versatile Installation, Compatible with HomeBase ProfessionalPet Friendly Detection to Prevent False Alarms Differentiates between humans and pets, reducing false alarms for pets up to 80 lb. Long Lasting 5 Year Battery Life Includes a 1,400mAh CR123A battery for long life and low maintenance. Easy and Versatile Installation Mounts effortlessly on walls or corners with simple height setup no extra adjustment required. Expansive Wireless Range with HomeBase Provides a stable connection with HomeBase at open air