Check the listing for details. Lunderg Under Mattress Bed Alarm for Elderly Adults - Wireless Sensor Pad Pager. Color: White, Condition: New. Listed at 149.49 USD. open box great condition The Lunderg Under Mattress Bed Alarm is a wireless sensor pad pager designed for elderly adults to provide monitored alert systems. This white plastic unit includes a mat and comes with a 1-year manufacturer warranty. The wireless feature allows for easy installation and use, making it a convenient solution for daily living aids and medical mobility needs. It offers peace of mind for individuals concerned about their health and safety while sleeping.open box great condition The Lunderg Under Mattress Bed Alarm is a wireless sensor pad pager designed for elderly adults to provide monitored alert systems. This white plastic unit includes a mat and comes with a 1-year manufacturer warranty. The wireless feature allows for easy installation and use, making it a convenient solution for daily living aids and medical mobility needs. It offers peace of mind for individuals concerned about their health and safety while sleeping.