The Smart Caregiver PPC-45 is a highly effective alarm sensor designed specifically for chair use. It comes with a 45-day lifespan, ensuring long-term, reliable performance. This sensor is an integral part of any smart home or healthcare facility, as it promptly alerts caregivers when a patient or loved one leaves their chair, helping to prevent falls and injuries. It is designed with user safety and convenience in mind. The Smart Caregiver PPC-45 alarm sensor is sold individually, allowing you to purchase the exact quantity you need.