





🔔 Stay in sync, stay ahead — the silent hero of safety tech!
The System Sensor MDL3R SpectrAlert Advance Sync Circuit Module is a compact, red LED-powered device designed to synchronize temporal-coded horns, chimes, and strobes across two-wire circuits. It enables precise 1 Hz strobe synchronization, silences audible alerts while keeping visual signals active, and supports temporal 3 pattern synchronization, making it an essential upgrade for modern fire alarm systems.
| Color | Red |
| Shape | Rectangular |
| Finish Type | Red |
| Light Source Type | Led |
| Power Source | Corded Electric |
| Brand | System Sensor |
| Item Weight | 4.8 ounces |
| Style | Modern |
| Number of Light Sources | 1 |
| Are Batteries Included | No |
| Product Dimensions | 5"L x 5"W x 1.5"H |
| Manufacturer | System Sensor |
| UPC | 783863036460 |
| Part Number | MDL3R |
| Item model number | MDL3R |
| Is Discontinued By Manufacturer | No |
| Finish | Red |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | No |
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