The Serial Number is a 16-digit number that starts with 8030...You can find it on the original package box, battery cover, or the Settings page of your Ultraloq in the U-tec APP. e.g. 8030123412341616
1. Ultraloq UL3 Series
2. Ultraloq U-Bolt Series
3. Ultraloq UL1/Combo
4. Ultraloq Lever
5. Ultraloq Bridge.
6. Ultraloq AutoBolt
7. Ultraloq UL300