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Chamberlain 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1
Brand: CHAMBERLAIN
Condition: Used
$2945
$3848
-24% Save $903
Updated: 2 days ago
Description
For use with every Chamberlain garage door opener manufactured after 1997
Enhanced troubleshooting, most intuitive safety reversing sensors
Low profile reduces risk of being knocked out of alignment
Whenever there is an obstruction, the garage door will automatically reverse
Compatible with Chamberlain, LiftMaster and most Craftsman garage door openers
Includes 2 sensors, mounting brackets, 18 inches of extension wire, instruction manual
Sold by
Amazon Warehouse
Official Amazon outlet for open-box & returned items
- Backed by Amazon's A-to-Z Guarantee
- 30-day return policy
- Ships from Amazon fulfillment centers
- Price verified on Amazon
Product Details
- SKU:
- awhd-us-b09gb6jhrr
- Model:
- 820CB
- Country:
- US
- ASIN:
- B09GB6JHRR
- GTIN:
- 00012381197460
- UPC:
- 012381197460
Shopping Smarter
Common questions about buying open-box and refurbished.
Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $9 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for CHAMBERLAIN products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.
