P144A Bed Leg Weight Sensor. This is ideal for domestic style beds, which are not often moved. It is set by adjusting an internal spring tension for different users and beds will activate an alarm condition when the bed is vacated. This may not be suitable for small children and very lightweight users. It is applicable for single and double beds and, if required, two sensors can be fitted with king sized beds. It is robust, highly reliable and discreet. The cables can be securely hidden. It can also be connected directly to nurse call systems.