Lowest power magnetic switch uses nanoamps

https://www.electronics-lab.com/lowest-power-magnetic-switch-uses-nanoamps/

Crocus Technology is introducing its CT832 Digital Magnetic Switch, in the CT83X series, a multi- function switching device with high sensitivity, reliability and new lows in power consumption, that it positions as the industry’s lowest power consuming switch. Lowest power magnetic switch uses nanoamps – [Link]