Dual voltage: 12/24VDC Adjustable holding force: 145lbs (65kg) Suitable for fire and all types of 90 degress doors Power-saving function design Two mounting methods - can be mounted on floor or wall

Dual voltage: 12/24VDC Adjustable holding force: 145lbs (65kg) Suitable for fire and all types of 90 degress doors Power-saving function design Two mounting methods - can be mounted on floor or wall