This kit includes one TL-2100E Monitor with TL-2109 easy release wheelchair seat belt. The Caregiver is notified by an audible and visual alert when the resident is about to get up from a wheelchair by un - clipping the seat belt. The fall monitor features an On/Off switch that prevents the alarm from sounding when the caregiver moves the resident from bed or chair, or when changing clothing or linens. Features: Low Cost with full range volume control. Visual Status Light - when in use, the visual alert light blinks every 4 seconds. This lets the caregiver knows that the system is functioning properly. Nurse Call Capability - enables you to use with existing hard-wired nurse call systems. Battery Operated (3-AA, Not Included).