Minuscule Wireless Temperature Sensor Needs No Battery

Dutch researchers have created a tiny (2 millimetres) wireless temperature sensor which doesn't need a battery.

Dutch researchers have created a tiny (2 millimetres) wireless temperature sensor which doesn’t need a battery to power it. Using radio waves emitted by the sensors wireless router, the sensor can collect enough energy to power up then start transmitting the temperature back to the wireless router. Currently the minute sensor needs to be within 2.5 centimetres (1 inch) of the wireless router which isn’t useful but the researchers are hoping to get the distance up to 1 meter (3 feet) within a year and ultimately achieve 5 meters. Additionally, the cost of an individual sensor would be around 20 cents.

Sensors powered this way could help manage smart buildings to turn on lights when people enter a room or to efficiently maintain air-conditioning temperatures.

Source: Engadget

Published by Marek Fewtrell - Associate Writer

Marek Fewtrell is passionate about anything technology. In his spare time, Marek will tinker with electronics and programs for fun. When Marek does get a chance to play games he prefers adventure games.