If you require an RTK survey-grade rover for use more than 30 to 40 days a year, consider the Extreme bundle. Purchase with the Bad Elf Flex at time of sale or after without any penalty. The Bad Elf Flex Extreme bundle includes the following unlocked services:
- Daily cost – none
- Fully unlocked RTK engine
- Multiple-constellation enabled
- Multiple-frequency enabled
Extreme activation is a one-time purchase, Bad Elf Flex is updated over the air