Pricing

How the Deposit Works

The $300 device deposit is fully refundable. The T800 hardware remains our property — you’re leasing it as part of your subscription. If you cancel, ship the device back and receive a full refund. No questions asked.

Why Subscription?

T800 isn’t just a device — it’s an ongoing service. Your subscription covers:

• Continuous algorithm improvements
• Cloud infrastructure for health scoring
• New feature releases (deeper diagnostics, AI-driven predictions, etc.)
• Customer support

Frequently Asked Questions

Can I try before I commit? We’re offering early access to waitlist members at a reduced rate. Join the waitlist to lock in your spot.

Do I need to buy the OBD adapter separately? Yes — the OBDLink MX+ adapter and OBD-II cable are not included in the T800 subscription. You have three options:

1. Self-purchase — Buy the OBDLink MX+ yourself from Amazon or OBDLink.com (~$100) and pair it with the T800 Box (the hardware unit provided with your subscription) using our app guide.
2. Pre-configured bundle — We purchase the adapter, pair and test it with your T800 Box, then ship the complete system ready to go (adapter cost + small service fee).
3. We order, you receive — We place the order on your behalf with the official invoice in your name, configure the T800 Box, and ship it to you.

All three options get you the same result — a fully working T800 system. Options 2 and 3 just save you the setup step.

Are there any other hidden fees? No. The monthly subscription, refundable device deposit, and OBD adapter are the only costs. T800 Archive (the permanent cloud health record) is included — not an upsell.

What’s T800 Archive, and why is it on by default? T800 Archive is your Tesla’s permanent health record, stored in the cloud and tied to your account instead of a single piece of hardware. It’s on by default because the whole point of a health record is longevity — the T800 Box in your garage only holds about 30 days of local buffer, but the value of your data is measured in months and years. A month of data can’t tell you how fast your battery is degrading. Three years can.

With Archive on, you get:

• Verifiable multi-year history for resale. Used-market data shows cars with documented health history sell at a 5–15% premium. T800 is a ready-made record that follows the car.
• Retroactive analysis when we ship new monitors. Your old data is re-scanned with every new algorithm — which means your data becomes more valuable over time, not less.
• Cross-device access and survival of hardware swaps, moves, and failures.

Is cloud storage a privacy concern? No — and not because we made a promise, but because of what T800 physically reads. The Tesla CAN bus our device listens to does not carry GPS, destination, cabin audio, camera feeds, or driver-behavior data. Those signals are not in the data stream we ingest. T800 Archive stores voltages, currents, temperatures, pressures, SoC, and charging events — nothing about where you went or when. See the Privacy Policy for exact details.

What if I really want the data to stay local? Turn on Strict Local Mode in your account settings and nothing raw goes to the cloud. The T800 Box caps your history to its ~30-day local buffer. You still get daily reports. What you lose: multi-year trend analysis, retroactive analysis when new monitors ship, the Sell Report (which depends on the full archive), and access to anything older than ~30 days from other devices. It’s a real trade-off and the choice is yours.

What if my Tesla is out of warranty? T800 is especially valuable for out-of-warranty vehicles. Catching a leaking air suspension, a failing 12V battery, or degrading cells early can save thousands in emergency repairs.