Bed alarm sensor pads are placed under the person lying in bed.. When individual gets up and pressure is released from the pad, the bed alarm monitor will sound (monitor required).. Safety: Reduces tripping, entanglement and choking hazards. Made with silver membrane technology, assures long reliable life. Vinyl material is water resistant; provides protection against incontinence leakage.. 45-day warranty. . WARNING: This product can expose you to bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.