SE | Overhead Door Closer with Electro Hold-Open Device | Suitable for Single leaf / Single Action Doors | Suitable for Doors of up to 1100mm wide | Suitable for Right & Left Handed Doors | Suitable for use on Smoke/Fire protection Doors | Size 1-4 Adjustable Closing Speed | Compliant with EN 1154:1996 | Hydraulic Latching Action | Adjustable Closing Speed