Acousto-optic indicative operation sauna door lock

Features

  Cast steel ,as an organic whole construction, can plate out all sorts of colors,beatiful,solid,durable in use.

  Full-automatic switch-box, without rotating handle,convenient,simple.

  With functions of single card and dual card unpack.

  With a backup unlocking function, can open the door in emergency.

  When hindered ,lock tongue will automatically return and it has hindered indication . Lock tongue has the anti insert function.

  Can use battery to supply power,with a low voltage alarm function.

  Can also use utility power to supply power.

  Acousto-optic indicative operation.