The Secure MAT-3-SET aids in preventing patient or resident falls and wandering - when a patient or resident steps on the floor mat sensor placed next to a bed, in front of a chair/wheelchair, or in a doorway the caregiver will be alerted by the alarm monitor - 24" x 36" floor mat is professional-grade for long term continuous use. Set Includes: 24" x 36" Reversible Alarming Floor Mat, SMA-120 Alarm Monitor, PH-1B Alarm Monitor Holder, 3x AAA batteries included <br> <br> SMA-120 Alarm Monitor Features: <br> Always on for safety and tamper resistance - Adjustable volume: 80, 90, 120 dB - Adjustable alarm tone - Nurse call interface compatible (with optional NCI-1 cable) - In-room sound on/off switch - Optional AC power supply saves battery life (model no. ACDC-1) - Wall Mount Option (screws included) - Tamper-resistant cover conceals all settings - 8 ft. connecting cord - Low battery indicator sound & light continues to alert until batteries are changed - Light bar easily identifies activated alarm - Protective holder, batteries & screw driver included - All components are covered by a one year full-replacement warranty