Power Switch, 86x86mm Hotel Magnetic Card Electric Push Button Insert Key Electrical Power Control Socket with 3 Cards

It can meet the requirements of large air conditioners and water heaters, making using and more stable. | It can ineffective waste and better power saving to extend service life of the power . | for reminds the remaining battery electricity in for time to it from running out. | On-off power type when the card is or pulled out. Delay for time can be customized and designed. | It can act as the total electrical power control. It is an for ideal and for building.