No Hold Open. This variable spring transom closer is designed for use on aluminium doors and has the same footprint as the Adams Rite ARC-51N however can be adjusted to suit each opening ensuring the door closes correctly while keeping the opening force down to a minimum.. Adjustable spring strength EN1-4 to levels in EN1154. Not designed to aid compliance to the opening force requirements of ADM/BS8300. Supplied as body only with modified L bracket and tag plate. Adjustable closing and latching speeds