Alarm Alert Chair Sensor Pad Will Last 1 Year * Designed To Be Used With Alarm Alert Alarms By Blue Jay (models Bj115205 And Bj115305) * 7 X 15 * Plug The Sensor Pad Into The Alarm * Position: Place The Pad Under The Patients Buttocks On A Chair Wheelchair Geri Chair Or Other Chair * Alarm Will Sound When The Patient Removes Their Body Weight From The Sensor Pad * Write The Patients Name Start Date And End Date With A Soft Felt Tip Permanent Marker * Limited 1-year Warranty *