Whether for StackCare @home or with our retirement community product for professional managers and caregivers, we use the same high quality sensors made by NYCE Sensors Inc in Canada. Stack tunes the sensors so they give us rich motion data when someone’s home and then preserve their battery life by ‘sleeping’ when they sense that there’s nobody there. The sensors have a built in thermometer to also provide room temperatures helping you to make sure that Mom or Dad are turning on the AC when they need it.