FAST SHIPPING FROM U.S. WAREHOUSES
Free shipping on eligible items in the contiguous U.S.; exclusions apply (AK, HI, PR).
- Ships today: Order by 2 PM EST for same-day dispatch (Mon–Fri)
- Smart routing: Ships from our warehouses across the U.S.—closest to you
- Category expertise: Real specialists in every category—get tailored advice before you buy. Ask a Specialist
Typical Delivery Times:
- 2–3 days to most addresses
- 3–5 days to remote locations
- Detects ring voltage and loop connect
- Screw terminal connections
- Wall mountable with foam tape (included) or screws (not included)
- Auxiliary 12V DC output
- Adjustable time-out for relay closure
- Two sets of relay contacts provided
- Selectable NO (normally open) or NC (normally closed) relay contacts
- Screw terminal connections
- Wall mountable with foam tape (included) or screws (not included)
- Auxiliary 12V DC output
- Adjustable time-out for relay closure
- Two sets of relay contacts provided
- Selectable NO (normally open) or NC (normally closed) relay contacts
| Product Name | Loop and Ring Detect Board |
|---|---|
| Condition | New |
| MPN | LDB-2 |
| Brand | Viking Electronics |
| UPC | 615687221572 |
Write Your Own Review




Validate your login