Complete your setup
Everything this camera needs, matched by our specialists. Silarius picks first.
The Resideo 4959SN is an addressable overhead door contact built on V-Plex, Resideo's patented two-wire polling-loop technology that identifies each device's point individually to the central monitoring station instead of requiring conventional four-wire, home-run multiplex wiring. It uses a rugged aluminum housing with an adjustable L-bracket magnet, a standard 2-inch (51mm) gap, and a 24-inch (61cm) armored cable.
Shipping
Free US shipping on orders over $200. Orders under $200 ship at the rate shown at checkout. Oversized items ship by freight; we confirm the quote with you first.
Shipping policyReturns
Start within 30 days of delivery. On change-of-mind returns you pay:
- Shipping both ways, to you and back to us
- A 3% card processing fee
- A 30% open-box fee if the box was opened
Special orders need a manufacturer RMA. Discontinued items can't be returned. Defective items are always covered.
Start a returnDamaged or wrong item?
Tell us within 3 days of delivery with photos and we'll make it right, with no fee.
Contact usResideo warranty
This product is covered by the manufacturer's warranty. We help you with the claim from start to finish.
Warranty detailsSupport from real people
Setup questions, compatibility, firmware: chat with a specialist or email info@silarius.com, Monday to Friday, 8am to 4pm ET.
Chat with usBusiness accounts
Approved businesses can pay on Net 30 / PO terms after their second completed order.
Ask about termsFrequently bought together
Save money buying these products together




