Description:
 * Low cost Omni-Directional pull string monitor
 * This simple monitor sounds an alarm when the pin is half pulled,
    if the patient tries to leave his bed or seat.
 * To stop the alarm ring, insert the pin to its original place.
 * The alarm works on 3pcs button cell batteries, included.
 * The alarm unit moves with the string to prevent risk of jamming
    due to pulling pin at the right angles.
 * The cord lock can allow users to adjust the cord length.
 * The fall alarm is designed for elder, which is also suitable for children.
 * Can be used in wheelchair or bed