Designed with safety in mind, these monitors can be used with pressure pads and floor mats. The monitors have audible and large visual alerts, adjustable volume and three tones. The Economy Monitor has an On/Off switch. The Safety Auto-Reset™ Monitor and the Change Pad Indicator™ Monitor, automatically resets, so there is no need for an On/Off switch; also features nurse call input plug and programmable 2-second delay. Comes with Caregiver Key™, which allows caregiver to silence an alarming alarm. The key increases staff’s ability to monitor clients. Monitors require 9 volt battery (not included).