If you want to sell Medtronic Guardian 4 sensors for cash, ValueCGM makes it simple. Specifically, we pay top dollar for unused Medtronic Guardian 4 sensors — free shipping and fast payment nationwide.

What we pay for your Medtronic Guardian 4 sensors

We offer competitive payouts for unopened, unexpired Medtronic Guardian 4 sensors in original packaging. Additionally, we make it easy to get cash for your unused sensors — simply select your expiration date range above to get an instant quote with no obligation.

What we accept

We ONLY buy NEW mint condition boxes in original manufacturer packaging. Furthermore, we only buy sensors that arrive more than 3 months before their expiration date. However, we reject boxes with damage, labels, or marker, and we pay nothing for those. Therefore, check your boxes carefully before you ship.

How to sell your Medtronic Guardian 4 sensors

1. Get a quote — select your expiration date range above for an instant offer
2. Ship for free — submit your order and we immediately email a prepaid UPS label to you
3. Get paid fast — once your package is delivered and verified, we send payment as quickly as possible, often the same day (please allow 2–4 business days)

Frequently asked questions

I switched from Medtronic to Dexcom or Omnipod — can I sell my Guardian 4 sensors?
Yes — in fact, switching CGM brands is one of the most common reasons people sell with us. As a result, we buy unused Medtronic Guardian 4 sensors from CGM switchers every day — simply submit a quote and we walk you through the process.

How long does payment take?
We send payments as quickly as possible, often the same day, but please allow 2–4 business days after delivery for payment to be issued and received. Therefore, choose PayPal for the fastest payout available.

Ready to get started? Get a free quote today — it only takes a minute.