TEDEE exxo smart modular european cylinder, high security. compatible with tedee pro/go/go2, class 6 en 1303, adjustable length 31–62 mm, anti-break, anti-bumping, anti-drill, anti-pick, traditional key on the outside. inside for smart lock installation, more than 200,000 key combinations. 100,000 usage cycles, includes 5 keys. copies available from gerda or authorised locksmiths, with key code