Abstract: Battery-free wireless sensor network (BF-WSN) (including energy harvesting network and energy rechargeable network) is a new network architecture that has been proposed in recent years to ...

The $50 sensor runs on two coin cell batteries so you don’t need a nearby power source for installation.

ABLIC’s battery-less water leak detection sensor extends the communication range by approximately two times that of its ...

Top alarms tried and tested by an expert - These are the best smart, connected systems for keeping your home secure ...