Description
HDL 4-zone dry-contact and temperature input module — manufacturer model HDL-MSD04T.40.
Manufacturer product features
- 4 signal input channels and 4 indication/output channels in the manufacturer description
- Dry-contact and temperature input functions; LED indication
- Vandal-resistant dry-contact detection feature listed by HDL
- Confirm the exact sensor compatibility, wiring and HDL Buspro project configuration
Installation and compatibility
Check official HDL technical documents for full electrical limits, permitted loads, bus wiring and configuration, project-specific equipment compatibility and local installation rules.
HDL Automation official product page
Ordering status
Supplier stock, final selling price, freight and compliance documentation for the intended region require confirmation. This product remains an unpublished and non-orderable draft.
Physical dimensions
45 × 45 × 16 mm (HDL supplier price list, Rev. 4.0, October 2026). Confirm model revision and enclosure clearances before installation.




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