Astro C40 TR Tension Module Inc. Our ACU technology provides peace

Our ACU technology provides peace of mind with GPS† tracking

Research has shown that it can alleviate headaches by promoting relaxation and reducing tension

Quick-Access Pockets: Strategically placed pockets for when you need to quickly grab your hive tool or jot down some bee-spirations

Be sure to check our size chart in our images

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Astro C40 TR Tension Module Inc. Our ACU technology provides peace***SOLD INDIVIDUALLY, NOT BY PAIR*** Battle Beaver's C40 Tension Modules utilize the same OEM thumbstick mechanism with our patented Tension modification, and is placed on a compatible PCB to work with the C40 controller. With a T6 driver, you can remove the screws holding your thumbstick module together and swap in one with Modified Tension. By increasing or decreasing your stick tension, you can better control your minor movements to improve