There’s a right way to do this work.
When you're building rain sensor pads, consistency isn’t optional — it’s everything. If your surface isn’t level, you’re already fighting the result before the job is even finished.
Most leveling tools slow you down.
Too many adjustments. Too much time spent trying to dial it in.
The Sensor Sack was built to eliminate that step completely.
With a self-leveling base and flat top pad, it gives you a stable working surface instantly. No legs. No setup. No wasted time.
Set it down. Tap it level. Get to work.
This isn’t about adding another tool to your kit.
It’s about removing friction from your process and getting consistent results every time.
The Sensor Sack
What it is
The Sensor Sack is a self-leveling platform designed specifically for rain sensor gel pad builds, helping technicians create consistent, properly leveled results during installation.Why it works
- The leveling sack base conforms instantly to the surface
- The flat top pad creates a stable working platform
- A quick tap allows for fast, precise leveling
No adjusting feet. No wasted movement. Just a repeatable setup every time.
What makes it different
- No setup required — ready the moment it hits the vehicle
- Tap-to-level design — fast, intuitive control
- Consistent results — reduces variation in sensor pad builds
- Built for real installs — designed for the job, not the bench
- Keeps you moving — eliminates time spent adjusting tools
Built for
- Rain sensor gel kit installations
- Windshield replacements requiring sensor precision
- Technicians who care about repeatable, high-quality results
Collaboration
Built together, not copied.
Developed in collaboration with Rammer Jammers — bringing back a proven concept and refining it for real-world use today.Tap. Level. Done.
Every Curbow Covers product is custom made to order.
We don’t mass produce our gear and we don’t outsource it to another shop. Each piece is built by hand, one at a time, with the expectation that it’s going straight into real auto glass work.
Because of that, lead times typically run 4–8 weeks, depending on order size and customization. We know that takes patience, but it’s the tradeoff for gear that’s built right instead of rushed out the door.
We’re not trying to be the fastest.
We’re focused on doing it right.



























