XENA's XUL series Bullett Locks range is one of the strongest U-Locks on the market made from stainless steel and with built-in alarm. Shock and movement sensors linked to a 110 dB alarm give them a further security dimension.

XENA XPL series Bullett locks: the world's first high-performance alarmed padlock. Extremely strong stainless-steel construction makes them virtually indestructible; shock and movement sensors linked to a 110 dB alarm give them a further security dimension.

XENA XBL series Bullett locks: the world's first high-performance alarmed padlock. Extremely strong stainless-steel construction makes them virtually indestructible; shock and movement sensors linked to a 110 dB alarm give them a further security dimension.

XENA XTL Trailer Lock: the world's first trailer lock made from stainless steel and with built-in alarm. Shock and movement sensors linked to a 110 dB alarm give them a further security dimension.